Animals also engage in incest. When will the Left be honest enough about their beliefs to publicly endorse that perversion as well?
This is a losing argument for the homo left. Taken to its logical conclusion it means homosexuality is an animal behavior, and we should accept this animal behavior as good.
If we should accept this particular animal behavior, then we should accept other animal behaviors like territoriality, hunting and killing, mating and selection of mates. IOW, if you intrude on my space, I can kill you--legally. If you have a better looking woman than I do, I can take her from you and kill you--legally. If I feel like it I can hump any woman I want on the street in full public view--legally, take a crap on the streets--legally, and on, and on, and on.....