> in far-left strongholds like Portland and Seattle.

1. Left-right is a completely different axis to authoritarian-liberty. I’ve known both an anarcho-communist and an anarcho-capitalist.

2. The idea that the US Democrat party is “far-left” is hilarious from here in Europe.

> What’s the best way to stop them from starting? What de-escalation methods are proven to work?

The ELI5 answer is “political competence”. These are things that would take at least a degree module to understand fully, not a comment thread.