I think a lot of it is the nature of the internet. I rarely run into or have met people(outside of when I was in college, perhaps) as extreme from one side of the argument to the other as I have on the internet. On the internet you seem to either run into staunch crusaders for social reform who seem to have the perfect answer for everything or the people who seem to want to stem the tide of social reform at any cost. I'll be the 1st to admit, I always wonder how "real" 99% of the people on the internet are.
It's bizarre, isn't it? It's a bit of a Clark Kent / Superman thing, I think. In real life, you are meek, polite and generally agreeable. But then you adopt anonymity and become an ultra powerhouse of unalterable Controversial Opinions which are FACT!
Overall, this kind of discussion is a good thing though. Hopefully, somewhere, somehow, to some tiny degree it'll help push diversity in gaming (as in - more types of more games by different types of people, including all of the "dudebro" type games and other much-sneered at "mainstream" games).