Very well thought out. I've experienced some of the same things, though only a couple were extreme at all. One was while we lived in the country, where us city folk (which I was only kinda) were ignorant and the other was actually in Hawaii, where I was the haole that was an enemy simply because I existed. We were able to just write off the wrong attitude in the country, though they sure could be mean about it. The haole issue got physical, though nothing that was very serious and our time there was only a couple weeks. Still, though 35 years ago, I can remember the feeling.
I like Freedman's perspective on it, as he recognizes that a huge part of the problem is that it's promoted by focusing on it. How much would it disappear if folks weren't looking for every excuse they could find to call someone a racist? Of course, if I had said these things independently of agreeing with Freeman, I'd be called racist by many.