IF there's multiple rapists FU, then it already is violent for the woman. This things doesn't promise to stop all types of rape, but in a one on one situation where the guy is un aware of the condom, it could help. You telling me you're going to be able to think clearly with teeth ripping into your shaft.

And as she said, there are women putting razor blades in their vagina to protect themselves, surely this is the better option.