I understand what you're getting at, and I even addressed this exact point in my last comment:
Societal shame and alienation may have worked in a pre-Internet world, but it works no longer. No matter how depraved, destructive, or horrible someone’s behavior is, there will be a community on the Internet who supports and encourages it. The ONLY WAY to reach those people, to keep them from falling deeper down rabbit holes, is through compassion.
Societal ostracization, stigmatization, they just don't work anymore as a means of discouraging negative behaviors. That's why overt white supremacy has made a comeback, despite being the most stigmatized, widely derided and most culturally unacceptable pattern of behavior. Shaming people is no longer effective to change behavior. If it was, Trump never would have been a viable candidate.
The only remaining reason to treat people poorly is to make ourselves feel better. There's no other benefit to doing so anymore. I'd recommend you accept the reality of the world we're living in.