https://www.bjs.gov/index.cfm?ty=pbdetail&iid=6766

> law enforcement system. BLM movement

(I assume you mean what BLM is protesting and not that BLM is killing people)

https://www.washingtonpost.com/graphics/investigations/polic...

> We do systematically repress them to lower classes

If you are systematically repressing people, please stop. I'm not, so I'm not sure where this "we" is coming from.

> and also kill them directly (through a violent law enforcement system)

You are more likely to die by car accident, heart attack, suicide or coronavirus than cop. That doesn't mean we shouldn't improve the system.

> and indirectly (deaths of despair, deaths from crime as a result of systematic poverty).

I encourage you to fight poverty and the best way to do it is through donating to meaningful charities. That doesn't seem unique to the US though.