I have used a Sand team it actually isn't that difficult to use if you put counters for your counters, but that is just good team building but i guess that isn't thought of when making teams, anyway. Also, the fact that garchomp is good in and without sand only boosts sand's power since he gets better in it, that doesn't nullify the point.
Kingdra- specially/physically defensive vaporeons (or at least mine) can stall out kingdra with hydration+rest.
LUdicolo- Toxicroaks sucker punch actually does wonders there, outside of that i am still working on it, he is a new threat, but like i said earlier i used Scizor bug bite if scizor was still at full HP to OHKO back. Vap can still stall Life orb sets.
Kabutops- stell types do wonders. Priority moves like mach punch and bullet punch do a good job at lowering his health.
All of their biggest weakness is changing the weather, which means just aim for politoed, my advice wobbuffett and pursuit users to take him out quickly. Rain is Hyper Offensive friendly, and sadly most of its counters rely on rain, but burning physical kingdras and kabutops stop their sweeps, and blissey can stall any special ludicolo or special kingdra. Stall is pretty much their biggest weakness and would probably need 2 stalling pokemon on your team to handle it well, but hey thats team planning. Also, having a rain abuser on your team isn't that bad, you can run vap on your team without rain just in case one shows up and i have walled a full rain team with it only and toxic spikes down, so i know it can do wonders.
If my points don't do it for you, then we might as well stop now cause we won't go anywhere, i don't see it your way and if you still don't then no point in argueing.