I tend to think that, unfortunately, it's the other way around. What we need to teach the next generation is that good faith, while still to be treasured, cannot be relied on, and we must be prepared to unflinchingly root out bad actors and forcibly prevent them from making things worse for people.

rooting out bad actors is most effectively done by proper education to keep them from becoming bad actors in the first place. any other approach in rooting out bad actors risks judgement errors and should only be applied in the most egregious of cases. and even there the approach should be: "look, you may mean well, but your actions hurt to many people, and therefore we must reject your approach and tell you to stop"