That's just stereotypical nonsense.
Most homicides in U.S. occurred in 5 percent of counties, says study
https://www.washingtontimes.com/news/2017/apr/25/most-murders-occurred-in-5-percent-of-countys-says/
Those who have the money to have a home and appliances may be complacently watching TV, but tens of millions of non-black folks are just barely living a normal life, while another tens of millions more are living in their cars or tents. Their numbers are always increasing, and over the next couple of decades, if the US doesn't start spreading the wealth, poor whites are going to take to the streets the way blacks did in the riots a few decades ago. Social media is going to be the trigger, the way it's worked for the coloured revolutions abroad in the last couple of decades. Maybe that's why the US establishment wants to end equality of access to the internet. Those who can't pay a premium for access are going to be shut out.
FDR, when he was setting up his New Deal in the early 1930's, put the US tycoons on notice that if they didn't start sharing the wealth, he was going to do it for them, as he feared mass civil unrest from the milliions who had nothing to lose. You underestimate the US citizen's potential for revolt.
It's not going to happen tomorrow, but with the real US unemployment rate at over 20%, if the trend to concentration of wealth continues, you can bet it's going to happen within the next couple of decades.