Precisely. The culture of our main groups is what drives the loud voices. In the end, American culture is useless for solving these kind of problems, at least for the time being.
There are people who buy into politics but not culture though (eg: it is possible for one to be politically liberal but then be more culturally free rather than culturally constrained). These people, in the sense of sex work and the porn industry may be able to produce viable solutions and products, but they'd constantly be on the defensive against both political cultures.
I mean, this is all well and good - if those people wouldn't actively consume porn and take the services of sex workers, as the OP points out. The "yuck" factor seems to only apply if this stuff is discussed in the open.
There are people who buy into politics but not culture though (eg: it is possible for one to be politically liberal but then be more culturally free rather than culturally constrained). These people, in the sense of sex work and the porn industry may be able to produce viable solutions and products, but they'd constantly be on the defensive against both political cultures.