I haven't read all 7 pages, but here's my $0.02 worth ...
I was born and raised in western Pennsylvania, I lived in Phoenix for 7 years then moved back home. We're pretty traveled. I've been across the country 13 times, and down south 3 or 4 times. I can tell you, the worst racism I've ever seen in my life is right here in good ole western PA.
There are buckle-wearing members of the KKK right here in this town. I see them at the grocery store. I have friends that are extreme racists. It's accepted around here.
That being said... whites are certainly not the only race capable of prejudice. I can say that I was a victim of prejudice while we lived in Arizona. Those Hispanic girls wanted nothing to do with this white gringo fresh from the northeast. No friendly words were ever exchanged, I was never spoken to, and no one would come when I needed help. This was in a nursing home environment. I lasted exactly 7 days. As I was walking to my car that last day, the one girl smiled and said, took you long enough. It's a terrible thing.
I have spent some time in the south. Georgia, North Carolina, and I can say, I've never been treated unkindly. White or black, our hotel and restaurant workers are all very polite. I expect the usual, where y'all from? LOL. As we are from just north of Pittsburgh, our accent stands out.
Traveling with a U-Haul and a car carrier through Southern Georgia, my car trailer blew the duallies on the passenger side. I was a single white girl, alone with my cell phone, with 4 hours to wait until they could get me a new trailer. Hundreds of cars passed, no one stopped until a car of young black men pulled up. I was out, talking on my cell phone on the berm. They pulled up, music blasting, and rolled out in a cloud of smoke. Those boys stood with me for 2 1/2 hours until my replacement trailer came, because according to them, it wasn't a good place for a single white girl to be broken down. I actually hugged them when they left.
I have two family members in the school system down there and they say race becomes a problem in a lot of high schools, as the kids get older, and the parental or environmental pressure kicks in. They know of no segregated schools, public or private in Georgia. They think the segregation is more the neighborhoods. My family members are white teachers in a 98% black school. There simply aren't many white folk in their area. They live in a primarily black neighborhood and have had no troubles with where they live, aside from the normal neighborhood things.
Blessings-
Em