For some the optionality of it is less important than the notion that if it's performative, you can be bad at it and therefore make yourself an acceptable target for abuse, and besides that the idea that some roles can be restricted to only those with a certain set of physical characteristics is deeply ingrained in many, be that in terms gender, career, or what have you.
In fact words all those words are a bunch of gibberish and neither the world nor reality works like that. I can just question the vague and often circular premises of that argument and we're back to square zero.
Not against the sentiment, but you're never going to get anywhere with that pseudoacademic bullshit.
Edit: hahaha just keep proving my point. You're the same as them- dogmatic fanatics with no arguments that hold up for shit.
Sooo what if a dude just decides to act like, dress like, and call themselves like a girl? Why would they not be allowed to do that? What about the laws of the universe takes away their agency to do that?
I'm entirely for gender abolitionism, but you really need to find some better rhetoric. "Cope and seethe, your arguments are shit" won't work on most people