There's a lot of degrading and violent TS porn, websites and films built on it in fact, but I haven't seen any major protests yet. As far as mainstream, Candida Royalle lightened things up and took some of the stigma from porn: http://www.candidaroyalle.com/
Personally, one of my favorites in the industry is Kink.com based in San Francisco at the old Armory. One of their sites is TS Seduction and you may have heard of Wired Pussy, Hogtied, etc. I love the way they handle taboo subjects and hold nothing back without worrying about fringe group reactions.