Simple test: will it hurt more _overall_ to suddenly lose them or keep them?
> You can turn on the news and the evidence is right there.
Selection bias is huge - not making the news are the vast, vast, majority of daily interactions that are net positives for society.
I’m not saying everything is perfect, but talking about “the police” as if they are a monolith in a country of hundreds of millions spread across 50 states and innumerable local communities is never going to be a good starting point for analysis.