Honestly I can't imagine that people having sex with animals is this huge problem society faces. It happens every day out on sheep ranches but you never really think about it. I think it's sick, and I think it's animal abuse, but in the grand scheme of things it's just a nothing event. It'll never be mainstream.
I think the bigger issue is still whether or not people have the right to choose who they have sex with.
"Similarly, laws against polygamy, incest (between consenting, related, adults), and so on are out the window."
Again, incest is disgusting but I think once you have consenting adults I don't know if there is much reason to throw them in jail for it. Polygamy is another issue entirely because it involves marriage. Since the state becomes involved in the marriage then it has an interest and therefore a say in who can marry... except in the case of religious marriages, I think the state should stay out of them. "But, in typical narcissistic fashion, they fail to look beyond their own bottom line to the wider implications of their quest."
Oh ok. We should just sit back and get arrested because after all.. if we're allowed by the government to have sex, next thing you know it will be a Mexican donkey show in every living room in America. Right?
Polygamy -- well, hell, that's marriage, so it's different. It's not like they're trying to pusg gay marriages down on us or anything.... Oh, wait. Yes they are.