You try and try to educate people but… idk maybe they should be allowed to conduct experiments if they’re willing to sign off on no medical treatment. Seems like a fair challenge to those who know so much.
As is often pointed out, in order for this plan to work they need to die before procreating. Unfortunately the crowd that doesn't take education seriously doesn't take birth control very seriously either, or at least not in they way they should.
Tetanus is very far from eradicated. The bacteria causing it are pretty much everywhere. People don't succumb to tetanus anymore because they are immunized and the shot is highly effective. That's why it's so important to get the vaccine. If you actually contract tetanus, your chance of survival without severe, permanent handicap is slim, even with the best healthcare available.