Almost no one in the US discriminates against blacks just because they are black.
Most of what is called "racism" is just a statistically justified fear of crime. It's not fair to the individual black person when others avoid him out of fear, but it's also not fair to tell everyone else that they must significantly increase their personal risk of crime to be "anti-racist".
Poverty may cause crime, but crime also causes poverty. Businesses flee and there are fewer jobs and services in high-crime areas. No one wants to lend to start a business where that business is likely to be bankrupted due to crime, or burned down in the inevitable next riot. Black families are also impoverished by lawyers and other costs of dealing with the legal system when junior decides it's a good idea to pull a gun and gets caught. People with the means to move away from crime-ridden areas do so as soon as they can.
Probably most black crime is committed by a minority of very bad people. If those people can be permanently locked up, that would help everyone.
To say #BlackLivesMatter without talking about the much higher rate of black crime above the crime rates of all other groups is to ignore the fundamental problem.
#BlackCrimeMatters too, and must be spoken about if anything is to ever improve.
The idea of doing that is bad because black people have suffered an almost unique history of being murdered as if their lives LITERALLY do not matter.
No other group of people in our history have been devalued so horribly except tribal Americans and Chinese immigrants to some extent in the 1800’s who were somehow procured mainly to reduce costs of labor for building railroads by the oligarchy.
Just let them advocate against public expectations to murder them with impunity.
When America was young, black people were kidnapped internationally for profits, enslaved, and denied status as human beings.
These atrocities are effects of unregulated capitalism which is both a revolutionary thing that will stop at nothing anytime it exists, mass murder will exist and even be normalized.
Even the Irish experienced denial of human status for no other reason than being socially vulnerable.
You might want to consider that.