"Acceptance" of racism implies that the racism just drifted into town and everyone said, "Live and let live."
Americans don't just accept racism - a lot of them are racists.
Really sorry this happened to you. I remember the first time I heard about "driving while Black", in the 1980s, from my friend Doug Walker, RIP. http://alienplanetscapes.com/
I became enraged, and yet I'm a person of pallor. It's just SO FUCKING UNFAIR.
Sorry. Sorry. I'll calm down now.
Oh, I have a joke I told Doug after this, partly to see his reaction:
Q: What's twelve inches long, black, and hangs in front of an asshole?
A: A policeman's tie.
Doug bristled when I told him the first half, but it was worth it for his response to the punchline.