This will be good for starters.
Marriage:
The foundation of every single society is the nuclear family. A nuclear family consists of one father, one mother, and any number of children.
Extended family provides an important support mechanism, but the mother and father do the heavy lifting.
Marriage in the most basic sense exists to reinforce the nuclear family.
Insofar as Church Teaching, from The Catechism of the Catholic Church:
http://www.usccb.org/catechism/text/pt2sect2chpt3art7.htm
1601
"The matrimonial covenant, by which a man and a woman establish between themselves a partnership of the whole of life, is by its nature ordered toward the good of the spouses and the procreation and education of offspring; this covenant between baptized persons has been raised by Christ the Lord to the dignity of a sacrament."
So yes, the Church does in fact teach marriage is primarily for the purposes of doing good for God and procreation. The secular institution is merely a litany of statutes that amounts to a glorified contract intended to provide backing for the more important sacred meaning.
Marriage is about the protection and support of children, not "what two consenting adults" want. If gay parents want the provisions given a married couple to tend to their children, I see no problem with granting a civil union that confers these rights and benefits. A child who does not have both a mother and a father is already disadvantaged in life, and the system should take that into account and not handicap them further.
"But Deck, 50% of Marriages fail! That mean's marriage is pretty worthless IMO."
I have actually had this said to me in person. It's full of crock.
The reasons marriage has weakened:
1: No fault divorce.
No fault divorce is the primary reason 50% of marriages fail. I should note that the 50% number also includes multiple marriages. First marriages have a much lower failure rate. When there are no strings attached, people just view marriage as a fancy way to say you're boyfriend/girlfriend. Religions still try and maintain no fault divorce statutes in a religious sense, but it has fallen out of favor with the Justice of the Peace.
2: Secular marriage theory.
When people view marriage as more of a glorified secular contract than a sacred institution which binds two persons together inseperably forever for the purpose of raising and supporting children, they fail to give it the moral weight it requires. Las Vegas is emblematic of this assault on marriage.
3: (Global) The legalization of gay marriage:
In every nation where gay marriage has been legalized, the overall number of marriages has declined. When marriage means anything it means nothing. Add this to the declining populations in Europe and you can understand why gay marriage would be a well-liked option. When your society is stagnant and dying, you don't tend to care much for preserving the key insitution which maintains it.
Anywhere gay marriage goes, regular marriage crumbles, so the argument "gay marriage doesn't affect regular marriage" doesn't pan out.
Homosexuality:
As early as 50 years ago, the APA classified Homosexuality as a mental disorder. Apparently the hippes and junkies of the 60's and 70's were more enlightened than all of their forebares. Or the APA just fell to political correctness.
The fact is that the gay lifestyle, as displayed at the Folsom Street Fair, is base and animalstic. Here's a link to a amatuer photojournalist who covered the event. This link goes to the warning page, so don't worry about your eyes bulging out as if it were goatse.
http://www.zombietime.com/folsom_sf_2007_part_1/
Fact is, this depravity is part and parcel to the gay community. This is their big event in San Franscisco, and more interesting still is how the advertised it: with a Last Supper scene where the food and other items were replaced by sacriligious dildos, among other things. I eagerly await the gay community's condemnation of this insensitivity. Good thing I'm not holding my breath though, I'd be dead already.
The following link provides details about STD's and/or AIDS and young gay men:
(Note: Don't even start with the holy roller bullcrap, this site is about as socialist and pro-gay as you can get without running into a propaganda site like HRC.)
http://www.avert.org/aidsyounggaymen.htm
"In the USA, it is estimated that nearly 300,000 men were living with AIDS at the end of 2002, and another 420,000 had died. Almost 60% of men diagnosed with HIV/AIDS in the USA were probably exposed to the virus through male-to-male sexual contact."
http://www.avert.org/hsexu6.htm
"In Britain, in the United States, in Australia, and in European countries such as Norway, the Netherlands and Germany, gay and bisexual men were among the first to be affected by HIV. For many people in Britain the reporting of HIV and the prevailing climate towards gay people only served to reinforce assumptions about gay men and their sex lives."
"Homosexual men remain the group at the greatest risk of getting infected with HIV in the UK. Throughout the 1990s, there were modest falls in the number of new diagnoses among homosexual men, except in 1996 when antiretroviral therapy first became widely available and the advantages of early diagnoses became clearer. Estimation of current HIV incidence rate among men who have sex with men is difficult. The often long period of time between the infection and diagnoses can make predicting the incidence rates hard. Also, some of the new infections will have occurred abroad either in the course of travel or before moving abroad. The great majority of new infections in this risk group will, however, have been acquired in the UK, and there are indications of rises in behaviours associated with increased risk among men who have sex between men in the UK. As the end of September 2004, 32,412 men who have sex with men in the UK have been diagnosed with HIV."
Here are CDC reports on new cases of AIDS:
http://www.cdc.gov/hiv/topics/surveillance/resources/reports/2002report/table8.htm
Note that Male-to-Male Sexual contact is 270-300% larger than the next largest category (injection drug use).
http://www.cdc.gov/hiv/topics/surveillance/resources/reports/2002report/table9.htm
This lists data for the end of 2002 based on race/ethnicity. What is valuable here is the percent. 61% of AIDS cases were transmitted by Male-to-Male sexual contact.
So what's the point?
First that AIDS does in fact discriminate, and second that homosexual activity is inherently dangerous for it's practictioners. Since AIDS is a reliable indicator for other sexually transmitted diseases, one can infer other diseases are also transmitted.
Which is why in the chat I compared it to alchoholism.
Similarities between the two:
Some people are genetically predisposed to be alcholohics.
When alchoholics give into their temptation, it affects them and often their families negatively.
It often leads to other pathologies such as drug abuse (gambling moreso in alchoholism's case, although those two are often chicken-and-egg scenarios).
It is a self-destructive behavior that can only be managed, never cured.
It is not contagious, but it is possible to become an alchoholic through excessive exposure to the stimulating agent.
The point is that these people are slowly destroying themselves and they need help and support. It isn't compassionaite to give an alchoholic a 30-pack to make them feel better about alchoholism, just as it isn't compassionaite to say "gay is OK" and start handing out extra-thick condoms.
Fallacies regularly employed by the Gay Movement:
Anyone who opposes gay marriage wants to kill gays.
This one actually came out in the chat. Aside from a select few fringe elements, nobody advocates a 'final solution' to the 'gay problem'.
What two people do in the privacy of their own homes is nobody's business.
As a conservative, I agree with this statement. However, legalizing gay marriage is giving government benefits and therefore
public acceptance and approval to the practice of homosexuality and any resulting relationships. This means that gay marriage has nothing to do with what people do in their own homes and everything to do with a legal system that applies to and affects everyone everyone.
If homosexuals want to get a marriage ceremony they can certainly find someone willing to take their money for the event. What they want is the public recognition of the validity of their arrangement, as well as the assorted government benefits granted to the married. Civil unions solve the latter problem without compromising the sanctity of marriage. Marriage is and always will be superior to a civil union, married couples in nearly all healthy instances can bear and raise children and thereby continue society. A gay civil union is a conference of benefits recognizing only that two men or two women are getting it on and they want to call it love in public. The state only has a vested interest in these civil unions if there are children involved.
Homophobe!
This isn't an argument, it's a proof of the modified Godwin's Law: As any discussion of homosexuality or gay marriage continues, the probability of someone being called a homophobe approaches 1. Few people fear or have an intense dislike of homosexuals, what they do fear or intensely dislike is the damage people do to themselves while calling their behavior normal.