Given the three examples here - while there *could* be alternative explanations - I’ll go ahead and stipulate that these *were* examples of racism. Albeit from a couple of generations ago.
The problem is that these people have allowed these experiences to define themselves for the rest of their lives and to dwell in the past. The result is minds filled with hate and the spectre of racism lingering behind every seemingly innocuous incident that the have passed on to succeeding generations.
Perhaps some of this is inevitable and human nature but it’s obviously not constructive for anyone.
When I was a little kid, in the ‘60s, my parents took us to the local electronics store (George’s, in Marlow Heights, MD) to buy a color TV. The salesman showed my dad a black and white TV and told him it was color but that the color programming wasn’t on yet. My dad saw other TVs on the same channel in color. He was so angry he wanted to punch the guy, but he didn’t. We left the store and never went back. We bought a color TV from Sears or something instead. I never heard that there was a problem at that store till 30 years later. I guess my parents didn’t want me to think that there were stupid/racist people in the world at that young an age. I guess I’m glad they didn’t tell me about it at the time because I would have been frightened.
What’s worse, experiencing an incident of racism, or inflicting a lifetime of “hate whitey” rhetoric on innocents simply because they share the same skin color? The solution to racism is not more racism.