'What I was criticizing was the erroneous assumption that all women, by mere virtue of gender alone, are afraid, vulnerable, victimized or whatever..'
That's not what this is about.... or not quite in the way you mean.
The fact is that we are, by mere virtue of sex, vulnerable to certain types of violence. Sexual violence is a big problem, and it's not being weak and whiny, neurotic or pathetic to fear it. It's a legitimate fear. Maybe you don't personally, which is great. But your personal level of fear makes no difference. It's not all in your own head. It's what's in someone elses' head that victimises you.
It's that legitimate fear which resonates with the threats. Someone could put all their venom into putting hex threats on their Twitter enemies, but that's not a real world problem. It's easier to shrug that off.