"Women aren’t discriminated against in twenty-first-century America"
"“Toxic masculinity” and “testosterone poisoning” are widely blamed for many problems, but you don’t hear much about “toxic femininity” or “estrogen poisoning.”" <-- you actually do hear about toxic femininity all the time, it's just packaged up with slick marketing terms like "tradwife"
"Who criticizes “femsplaining” or pretends to “believe all men”?"
Well, "femsplaining" has historically just called "being a bitch," and "believe all men" seems to be the default position of most people considering how rarely sexual assault victims are, historically, taken seriously.
(Also, not for nothing, the slogan he's alluding to is "believe women" not "believe all women." And the thrust of the catchphrase is not that we should automatically believe every claim out of a woman's mouth, but that we should believe rather than dismiss-by-default women when they say something. So, on the matter of getting basic facts about the subject matter correct, he's already getting off on the wrong foot, being propagandistically wrong here.
I'm actually shocked at how terrible your link is. I really had a higher opinion of HN users (although lately it's felt like all anyone wants to talk about is AI slop).
I recommend you read things more closely before linking them. Your reputation is at stake.