So, first, I just have to say: TOLD YOU SO!
Ok, now that I have that out of my system, back on point.
Summerizing, in case you don't want to link jump, he states that incest is demonstratively wrong and should be illegal (although he also says he doesn't think Professor Epstein should be tried) because it causes a breakdown of the family unit. When Dad has sex with daughter or brother has sex with sister they are trampling what defines a family and therefore it is apropriate as a society to criminalize it/immoralize it. Then he makes the logic-wrenching statement that, since homosexual sex doesn't destroy the family unit it should be allowed and tolerated.
Let's see, family unit as it has been defined in this country for over 200 years: father, mother, kids. How does father, father, kids or mother, mother, kids not change that? Is this person mentally deficient?
Not only that but that 'family unit' of father, father can not create 'kid' until and unless a 3rd party intervines. So, it's not only father, father, kid, it's actually father, father, mother, father, kid. (Because the adoptive kid still has a biological mother and father) (Or mother, mother, father, kid. ) Yes, adoption is a viable option for a traditional family as well but, in that case, you are adding onto the traditional father, mother pair the offspring of another father, mother pair. No matter how you look at it homosexual relations mess with the traditional family structure just as much as does incest, pedophilia, bigamy/polygamy, and any other deviant sexual behavior you can think of.
Unfortunately how they mess with the structure is fast becoming irrelavent to the liberal left. Especially for those who love the 'nanny state' mentality, the traditional family, with mom and dad raising, teaching, and equiping the children with the family morals and beliefs, is something they hate and are anxious to get rid of. So today it's 'accept homosexuality or you're a homophobic bigot' with people protesting their arrest/convictions of polygamy and incest (a polygamist recently used the same arguement as homosexuals to try to get him sentence over turned), and a ever more softening of liberal public sentiment towards them and other deviants. Tomorrow it's 'accept any sexual act or you're a sexually repressed bigot. (Or maybe they'll have to make up a new word along the same lines as 'homophobic' to be applied to people who hold to traditional morals.)
Guess what, I'm not 'phobic' of immoral behavior, regardless of flavor, I just recognize it is immoral, and will regardless of which flavor the liberals decide is 'in vogue' next. And regardless of what intelligence-insulting drivel they use to try to sooth their shriveled conscience.