If I had a simple, one-size-fits-all solution, you think I wouldn't be out shouting it from the rooftops?

Self-defense can help someone avoid getting raped in some circumstances, sure. Education can prevent some people from committing rape. Bystander intervention can help to prevent some rapes. Fixing our legal system could help to reduce rape.

I don't think there is one simple solution. I think this requires a lot of work on a lot of levels. Which is why it's so frustrating to me when so much of that work gets mocked and blown off by folks who are only willing to look at the simplistic "Just put a bullet in their brains" thing.