It can be both
Race is a useful social construct in the class war. However, harm has been done to people in minority groups, so we cannot ignore it’s impact.
Cops are class traitors
You can’t separate these. They are all interconnected. That’s why the answer is intersectionalism
It’s about class because there are black cops and white arrestees?
There are numerous problems with policing in this country - some stemming from class, some from race, and some from a cruel intersection of both. Or, usually, even more factors. You can’t just boil everything down to “It’s class” even if class is an important component of many social problems we face.
Not pictured: excessive force resulting in arrestee’s death.