Hardly any are. Women are much more likely to get beaten up by a family member or their husband, or boyfriend, than some random incel being violent against them. Even Naama Kates said that a lot of the "incel terrorists" didn't even browse these boards. Some of them were fascinated with mass murderers from an early age. Alek Minassian in particular was like this.
Normies and women need to keep the facade that incels are particularly violent and evil, because then they don't need to empathize with us. Not that they need to do that or that they would even want to do that anyway. If they can convince themselves and others that incels are just bad people with bad personalities then they can keep their just world fallacy theory. Just like the rich need to keep telling the poor, that success is all about how hard you work.
Also, women genuinely hate male virgins. They see this as a way to keep the gene pool better. I don't believe the toilets are doing this consciously, but if you look at FDS they have said in the past things like they want to breed all the under 6' tall men out from the gene pool. If you are an ugly man, women want to keep you a virgin. They hate your guts and they even want you to commit suicide.