No this author doesn't understand radfem femcels. Instead of just blanking out when he said I'm not bad she should have said "not all men!!!" Sarcastically, before saying "yes, all men because you allow people you're close with to act that way."
I remember there was a dude in high school. Both of us used to get bullied but I escaped by going to advanced classes. He stayed in the gen Ed classes and kept being bullied. I felt bad about all that stuff but I never once reached out to him. This manga reminds me of that.