He's a symptom. Violence against the idiots who can't help but say the quiet part out loud on camera won't stop the millions that do manage to keep the most blatant statements contained to men's spaces.

What we need is a culture of nuanced introspection and personal growth, where people like him can admit that they're pigs without it destroying their lives or moral standing, instead being a first step towards rehabilitation. Women and girls deserve to be kept safe from him and boys deserve better teachers, so he wouldn't be able to work in education until he has done a lot of personal growth, but violence is just scapegoating.

Of course if the state threatens violence unless you pay taxes that pay for people like him to endanger women, then you can engage in organized mutual self-defense. Hard to get to that culture of personal growth otherwise.

In the mean time, people are entitled to organised mutual self-defense against him, which might also include violence but probably won't.