Also there is evidence that it is harmful to cis people. Especially cis women who might be queer or straight or gender nonconforming or not. These fuckwads always forget trans men exist and just harass women more with this shit. They don't give a fuck off you're trans or not, it's about control. And their especially interested in controlling women.
It's also directly tied to fascism. Eco points to Machismo in point 12 of Ur-Fascism. "[Fascists hold] both disdain for women and intolerance and condemnation of nonstandard sexual habits, from chastity to homosexuality." Meaning it's not just women, trans women, gay men, people outside of traditional 1940s gender roles, but it also includes straight, cis men who just don't seem to be straight and cis enough.
I feel the need to copy my comment from another post with a similar message:
An insurance CEO was shot to death this morning, it's a start.
To be less callous, he looked like a cute man, and his family is obviously devastated. Police say they have no suspect and no motive yet... But it was an assassination not random violence, I think we know the motivation. It's pretty sad overall, but surely it's also sad that someone was driven to this point by the company he was an exec of.