As someone who has had his share of gay sex, with multiple partners, I can attest that all of my partners were all disgusted with raunchy, dirty, shitdick sex whenever the topic came up. It is something I find unappealing as well. I doubt such mindsets are anomalous among U.S. midwestern homo/bisexuals. As far as the prevalence of dirty gay porn goes, I would suggest to look at amateur gay porn, as you will see behavior that is more typical of a gay couple, where love and affection is apparent.
One could make such useless characterizations of the prevalence of violence against women in heterosexual porno, and the objectification of women in general. But, we know such generalizations are incorrect in general. ;P
Hmmm this post explains a lot. Lol