the vast majority of men are only willing to engage in public violence if they feel like the people around them will approve of — and reward them for — that violence.

ICE Watch works because it surrounds men seeking approval with people loudly expressing their disapproval. And the noise has the added benefit of drawing large crowds of bystanders who can quickly outnumber the ICE agents, who then have to decide if they want to escalate a situation or perhaps abandon their activity altogether.
https://www.ms.now/opinion/minneapolis-ice-watch-protesters-violence-research

I’m a Minneapolis sociologist who studies violence. Here’s how ICE observers are helping.

Research into how violence occurs shows that disapproval from the people around you can help reduce it.

MS NOW
@Nonya_Bidniss and yet it still takes the Minnesota Staties to tell the ICiEs it's OK for them to stand down.
@Nonya_Bidniss
Unfortunately no opt out on that site.