For me, more diversity simply means more freedom and less restriction due to outdated social norms.

"Outdated social norms" like homosexuality?

The porn industry is literaly one of the most astroturfed things there is, as only a few companies own basically the entire market. This means that hey can push whatever shit they want regardless of actual demand.

My theory on all that: It seems that many (most?) mainstream gay porn performers do their token FTM scene. Get it in the books. Check it off the list. And then get back to business as usual. These are people who, at the end of the day, have to treat sex from a professional standpoint and work with scenarios or partners they aren't always legitimately enthused about. Because it's what they're paid to do. You pop the pill and think of England. And provide whatever soundbites are needed to market it.