Holy shit, I had no idea people actually treated females 'badly' in online games, I remember playing Garry's Mod, when I was a teenager, we had a few females that used to play alongside males, All I can say was that there the guys actually worshiped the females (as they were so rare), however there was a bit of toxicity, mainly towards the younger kids (who sounded like little girls and thus got called little girls), however to my experience; no females were insulted (especially in the way you describe), so it's really a shame to hear bad experiences.

I am disappointed in my fellow males for being so gender biased in the games you've played.