Idk what you mean, there are in fact TERFs on fedi already there's an instance called spinsters i know of, of course they are blocked by most of us, no one is denying them access to the technology but we dont need to go out of our way to help them. That goes double for Meta or other mega corporations.
Just like the US government is perfectly capable of setting up an activitypub server.
Going put of your way to acvomodare the wealthiest and most powerful people on the planet against what may be the majority of one's userbase is certainly not becoming