That is interesting how this issue gave birth to so much flame. Personally, I don't think that they should be isolated, after all you can sleep with a goat if you like, but keep it to yourself. I agree with Olya that who is having sex with whom is a completely personal matter and I don't really care.
But, there are things where I would like to draw the line.

First. Telling children that homosexuality is normal is wrong. Only when a young man or a woman during the hard process of growing up suddenly feels 'strange' and 'different' from the others a specialist in psychology should take care of it as gently as possible. Alas, we're speaking impossibilities again. After all, the word 'normal' means 'like the majority'.

Second. Calling two gays living together 'a family' is wrong. Again - the purpose of a family is to have children, so, obviously, a family is a union of a man and a woman (and fortunately it's the exact definition of the term 'family' in Russian legislation). If a 'union' between two homosexual persons needs some legal protection there are plenty of ways to do that without the legal procedure of 'marriage' (well what would a priest say I wonder - 'I name you a husband and er... a husband, right?)

Third. Gay couples should not be allowed to adopt children. This is simply wrong.

This pretty much covers up my issues with homosexuals, well, maybe I add yet another one:
Gays should not propagandize their way of life - see #1
I simply do not wish to explain to my children why this man is dressed like a woman.