Ask yourself:
Are my actions actually about helping to make a positive, uplifting change in the world? Or am I really tearing others down without opportunity for growth?

Helping someone to become better is not excusing past actions.

If you "cancel" someone outright, you prevent them from learning and growing, and passing those learnings on to others in turn.

Responding to someone's actions by maliciously tearing their life apart doesn't solve problems that person caused. It continues a cycle of hurt.

Note, this does NOT mean that it's up to victims to educate abusers. Your own wellbeing and safety come first, every time. It DOES mean that those who are not directly involved need to consider the reasons behind their responses, and the likely outcomes.

If you're tearing someone apart as "retribution", you're turning yourself into a conduit for hate. Seek to educate. Not to destroy.