As someone who's been online since BBS's etc, and early days of online gaming...
The earliest calls of "Tits or GTFO" in gaming was a response to women bringing gender into the mix -- this was back even before voice comms were common. What would typically happen is a woman would ask for special treatment/consideration, because they were a girl, and guys would respond by basically saying "Unless you're willing to prove you're a girl online, we don't owe you any additional courtesy", in an incredibly crude fashion. Unfortunately that sort of seems to have evolved in some areas to be just straight up misogyny.
But, even demanding polite / respectful language, is something men don't tend to do to each other online on most forums. A woman or a minority demographic demanding that language be changed because "they" are there, is basically asserting special privilege. Gender is entirely a construct in an online / virtual space, where anyone can claim to be anything, so someone bringing it in / forcing it in to the conversation is basically an attempt to force others to change patterns based on your whims. If gender doesnt matter, don't get fussed demanding to be addressed like a woman.
Its sort of like, consider an old timey garage, with pictures of pin-up calendar girls on the walls, guys covered in grease, farts un-checked, crude language and swearing all over the place. Add a couple women to the work crew with giant fine-prone govt orgs to back them up, suddenly all that 'guy freedom' goes away / shifts. In an online space, there're no genders unless they're forced into the conversation -- but once they are, you're not as free to be open / honest about things as a guy. You gotta hold your farts. Guys would rather be free, so they push back against gender entering those spaces -- any talk of 'gender equality' is very similar to talk of masculine suppression.