The perversion of sex among humans is the result of being made to feel dirty as a child for having sexual feelings. Once a person has internalized this tremendously powerful human need as something that is evil to express, it will express in ways the person has been told are evil because the need is real. It will happen, therefore, that a lot more of this kind of sexual repression will occur in conservative culture because it is religion that is the most common carrier of this, the body is evil, disease. But sexual repression is universal in our culture so we are all carriers of the disease. That is the source of the contempt for those who express it. It is political only in the sense that it is in fundy Christian homes that are the most infected with this disease. But it is condemnation that perpetuates the disease, when we condemn others for it and our children for having sexual feelings.
The point is that while there can be a political connection with more Republicans falling to this disease than Democrats, for the above reasons, to turn the issue into a partisan you're worse than me is to miss the point that we all have this disease and we need psychological and spiritual work to do something about it, Self hate destroys everything. It is the source of hatred of others and why we demonize and condemn. It's a mote and beam issue.