Earlier quoted context omitted.
And what's your argument?
Generalizing a huge population on the basis of a tiny, curated group invites bad policy and general ignorance.
However the point that I'm trying to make (maybe badly) is that the Police are different to most other organisations. They're probably closest to healthcare in that the population, or maybe even distinct communities of a country needs to be able to trust the entire police force has its interest at heart.
From an outside perspective, this is failing in a bad way in the US. It is more than likely the actions of a few that is causing it.
That failure has bad repercussions, things get worse because people start taking justice into their own hands ... it leads to riots, clashes and worse. That's why you can never tolerate any corruption in a justice system.
I've witnessed first hands the riots here in London that resulted from questionable Police actions (we still don't know the full story of those events). It feels like society is crumbling when things get that bad.