It's perfectly acceptable in mainstream media to say "don't ever trust men on issue of sexual assault". Most people deny that's sexist, some even say that disagreeing with this position is sexist!

Reading HackerNews has lowered my trust in the demographic categories that make up the majority of this forum, including ones I belong too.

I agree. The problem arises when people predominantly of a certain race or sex attempt to define the narrative around racism or sexism that affects another race or sex. It's a little difficult to find that trustworthy, in my opinion. People should be trusted to speak about data and other verifiable sources as well as their own experiences.

What about pointing out more factually based claims such as which groups commit more crimes, etc?