As for your “connection”, it’s pretty easy to see the correlation between demographic percentages and violent crime rate in any area of the country, so much so that you can pretty much say that one indicates the other.
What I really wonder about is this: It is half Native where I live, they call themselves Indians. They suffer the same social problems (maybe even more) that you see in the inner city ghettos, yet the crime, shootings, and murder doesn't occur. What is the answer to solve this nightmare our country is experiencing? Whitey can move further into suburbia, the respectable blks can do the same, the problem doesn't go away. Do we accept that blks commit murder 7 times the rate of Whites as ok? Do we accept that Whites refuse to live in that environment?
Many years back, I lived in North Carolina, way out in the country, it was 50/50 white/black. Everybody was quite poor for the most part and yet no real crime or racial problems like we see today. Yet even back then, there were racial problems in urban areas.
I don't have the answers, just wish it wasn't how it seems to be.