Most people don't care much for Cops in the same way they don't care for Politicians
I think most people usually strongly support the police.
There is a small, vocal, and very violent minority who are given disproportionate coverage in the media but I don't think they have widespread support in reality.
Whatever people may claim they want on Twitter, they do NOT really want to have the police removed from where they live. It's always some other community that they want it for, not their own.
I expect most black people want more police in their neighbourhoods to protect them from the violent criminals that prey on them.