I think many secular liberals have come to the conclusion that hangups about sex and sexuality are the problem. Whatever negative aspects there are about porn and the porn industry - and of course they exist - they're far outweighed by the fact that so many people are raised with weird hangups about sex. And given the ubiquity of imaging devices these days, suggestions of banning the creation of pornography are almost indistinguishable from suggestions of banning the sex acts themselves.
Time for the Victorian era to end in the US. It really doesn't matter all that much what peoples' genitals are rubbing against.