Honestly, I don't think it takes a passable T-girl to make the average testosterone filled guy to question his sexuality. I've seen the simple existence of crossdressers in the same general area as guys seem to irritate the bejezzus out of these fellows. I may be reading more into the situation that was there, but what else could make them so angry with no direct contact or interaction? Now they may not have gone deep enough in their self analysis in that moment to figure out what had them angry, but if anyone was ever able to sit them down and work through it, I think they feared if that could happen to some other guy, they were in jeapordy of wearing a dress as well.