Also, as for the human-level consciousness and enslaving them, we've kind of already been doing that. I mean, just look at Alakazam, Metagross, Lapras, etc. Certain Pokemon are just as smart, if not smarter, than humans. Also, we don't know for sure that they are as smart as us, so there is every chance that they aren't all too intelligent, and their appearance is just the result of them being beastial alternate dimension counterparts to certain humans that are rough.y equivalent to that world's version of Pokemon, or that they feel connected to, and therefore begin to mimic, certain people.
That said, if they do end up being human (which I doubt, but I digress), I would not be cool with catching them. That would just feel oh so wrong. But again, I think they are further removed from people than some might think.