The answer, in actuality, is very plain and simple. People such as this fucker have based their identity on parroted 2017-2018 memes in a manner similar to the media's boogeyman interpretation of them.
Note how "femboy" went from an anime trope and meme back then, to post 2020s framed like it was "always an identity and trans related" as one example. When femboy memes were circulating back then media and reddit types made claims about it being MAGA neo nazis using a slur for trans people, and that led to memes about femboy nazis. Too tired to look for and grab it but there was one with that one pink hair anime boy paired up with hitler where it was like "YOU KILLED THE MEN BUT NOT THE IDEA". Anyone who remembers the pre-rona times remembers this, I'm certain. A lot of the post 2020s problems with later zoomzooms is literally parroting the innacurate distortions of troons and video essayists. It's how you end up with the normie consensus of the attack helicopter copypasta somehow being about troons when it's blatantly an otherkin joke when you actually fucking read it. We're in the fucking funhouse mirror world version of the last decade. And it's still fucking 2016.