The person isn't making outlandish claims. You can search the web and validate all of them.
Liberals, as in new leftists responsible for the majority of purity spiral shaming we've seen on the internet for oh the last two decades now, are in fact responsible for their fair share of extremist ideologies that some folks have now taken as self-evident. This is despite the fact that many of us who once considered ourselves part of their ranks are completely sick of its absolutist language.
I've been pushed into what I guess must be a kind of center because it seems we can no longer have any discourse of any nuance around issues like trans people without being labeled a fascist or maniac neo-Nazi right-winger.
To take an example of this, I have a very close friend who is trans but even she is sick of how faddish transness has become. She insists she's a trans-medicalist, something I only recently learned about, which seems to set the bar appropriately high to being what global society (not the ultra-left view that dominates places like HN and Reddit) deems a woman.
I actually do believe in biological gender and even think the fact biological women are out there bleeding and suffering once a month in ways men can't even begin to understand does in fact separate them from other people stating they are now a woman. Or literally growing a human being inside them is both a privilege and a horror that marks someone so indelibly we call this person a woman.
Yet I can no longer reasonably even engage most of you in a nuanced discourse about this without likely getting downvoted to oblivion. There was a time once when you could, but now it seems that time has passed.