Like any religious zealot, they absorbed the dogma (like assuming white people just controlled
everything, always) and will use that argument to silence a genuine critic. "Well, if you don't agree with me, you don't agree with my righteous group and therefore you
must be a racist white supremacist." It fits that formula. No rational thought used, nor required.
Many of these key points of dogma are even contradictory, guaranteeing a conflict with most normal-thinking people. Fat-shaming makes a good example of one of their broken dogmas; if you don't find a fat woman attractive (women only, men are excluded because
equality) you're an evil fat-shamer. If you DO find her attractive, you're an evil fetishizer.
You're punished for noticing OR not noticing the same woman. Hooray for progressivism!
The "progressive stack" is the most disgusting of their recently-created beliefs. A person is assigned a value of human life depending on how highly "oppressed" they must be, according to blood traits. The darker your skin, the more points you get. Women get more points than men. Handicaps beat the able-bodied. And oddly, the tippy-top of their stack goes to anyone muslim. The right to speak first at events they can control (or other goodies to be had) is given to those with the most oppression points because they believe it's somehow correcting the wrongs of the evil, evil, evil white cisgendered male scum of the universe who is to blame for all wrongs.
No amount of arguing will change the mind of a die-hard progressive... very few have ever left their ranks.
This is what the continuing argument over gamergate has consisted mostly of - a bunch of corrupt, colluding feminists and "journalists" who tried to cover up their actions by going on the attack. Each time they falsely accuse their gamer audience of wrongdoings, the gamers staunchly defend against the claim (usually with crushing evidence.) And every. single. time. the progressives have come back attacking with the same routine of false accusation and tears but more emphasis and emotion than before. Not facts, emotion.
Why are they still doing it? Because sometimes it works, and the soft-hearted want to believe a crying person HAS been bullied (even if the crying person is often the bully themselves.) This has led to some notable examples of prominent group leaders crying for dollars, sobbing for patreon donations, and begging for someone to stop the big ol' meanies who made her sad on the internet.
And the goofballs fighting for censorship are so tied up with their zealotry they can't realize that a restriction of freedoms will eventually mean the SAME restriction on their own personal freedoms... but hey, they're too caught up in the heat of the moment to see that far ahead. See "useful idiot"
https://en.wikipedia.org/wiki/Useful_idiot