Here are the two foundational and enduring problems with policing in the U.S.:

(1) U.S. police forces are hypermilitarized and have been killing 1000+ people a year since 2013 (other countries do not have these numbers or rates for police killing citizens; see Germany).

police kill 1000 per year
The New York Times

(2) Black people are killed at disproportionate rates compared to whites (Black people at a rate of 30/million v. white people at 12/million) even though in the U.S. there are 5-6 white people for every Black person.

police kill Blacks at higher rate
The Washington Post

These are not “bad apple” problems, but systemic problems.