It's not about them being gay or straight. It's about them being hopeless losers and, instead of realizing that they're hopeless losers, trying to weasel and manipulate their way into sex. There's a reason these creeps always stalk lesbians.
Like what was mentioned earlier, these people think their status as a tranny is some kind of relationship cheat code. It allows them to blame their failure with relationships on those dang, dirty trolls transphobes. It also allows them to try and guilt people into pity sex with them by claiming it's a bigotry issue and not, you know, a personality issue.
There's a reason many people on this site call for Total Tranny Death. These people are extremely narcissistic and manipulative, and everything they do is reflective of that. They can't get relationships the normal way, since they're such unlikeable people, so instead they turn to deceit and treachery to achieve their goals. They are back-stabbing, two-faced snakes.