The real problem is a cultural one. While things have been definitely improving in recent decades as feminists raise awareness of the problem of sexual violence and the importance of consent, there are clearly still a large number of men who disregard women’s basic human right to control your own body and own sexuality. The men in these groups really do believe they are entitled to own and control female bodies. While these insular misogynist communities certainly end up reinforcing their ugly attitudes toward women amongst themselves, they didn’t invent the notion that women’s bodies are public property for men to use how they please, regardless of a woman’s feelings about it. The only real, long-term solution is to change a culture that inculcates young men with these feelings of entitlement and teach respect for women to boys starting at a young age.