These people are so incapable of critical thinking it's scary. Their thinking is so incredibly ideological, so black and white it's terrifying to think how far this goes. Right now it's gender - which is relatively harmless, truth be told. Outside of lives being destroyed, people losing families, jobs, money etc, it's unlikely to lead to actual death and harm in 99.99% of cases.
But one day, apply this type of thinking to say, war time, and you can picture some pretty scary shit.
Whenever I look back at Mao-era China and think; how could kids turn on their own parents and in many cases have them killed? This is the path there. This is how you draw a straight line from legitimately positive ideology to the very pits of human cruelty.