It's more likely reinterpreting the past to match their new self-image. People have hundreds of preferences, and inevitably some will cross stereotypical gender lines. If a boy doesn't like football and prefers riding horses, he's still a boy. If a girl doesn't like chocolate and yogurt, but loves hunting and meat cooked on a campfire, she's still a girl. Chances are we could all declare ourselves "eggs" by cherry picking a few random facts.
It's half of why troons are so pathetic; they think a small handful of preferences override every social cue possible. The horrors who think using little heart emojis to engage in very Male-only fake tit measuring competitions (essentially surrogate dick-measuring), or the ftms who think guys are just too aggressive and competitive and need to prioritize other's feelings (because they are the true acolytes of manliness and should be catered to by the men, dammit!), might as well be funhouse mirrors of their desired gender. You know how those make it look like your nose is twice the size of the rest of your head? They've grabbed a handful of shallow archetypes, and that's all they are, with no understanding what those archetypes mean or how they come about, much less what an actual person not-larping that role thinks. Their entire personality has been whittled down.
Trannies don't actually really like gays, they're just a convenient host for a parasite. They come out with a bitchfit every quarter about how white gays aren't doing enough to cater to the most vulnerable (namely, themselves! How convenient!) Missing out on pride might be unpleasant, but there's some way better: you're now a victim! And you can rub it in all those nasty sodomites' faces that their special day is cancelled, so there's schaedenfreude as well.
They'll essentially be that one spiteful bitchy guest at a wedding. Everything is actually about them, and any problems are a chance to gloat about how you could do so much better and suffer munchausen-by-proxy for the bride.