This is autistic thinking. There has been a boom in trannies, but they're not former soyboys, they're mostly gen Z faggots and especially young women who are still developing and are susceptible to retarded fads they see online.
But I personally believe the main reason people use troonjaks more is because the sharty nowadays is literally composed of soyboys with no self-awareness who just happen to be right wing. They are so fucking emotional and submissive and obsess over women and gay admins. And for this reason, they don't find regular soyjaks offensive anymore, because when they look at it all they see is themselves, so to be insulting in the slightest they have to resort to spamming troons.