Howdy Dwayne!
So, you figure the guy who yelled "go back to your own country", after cutting me off on the road a few days ago, was just being friendly? ;-) While my own experiences of racism are no doubt different from that of a black person, it is often racism indeed that I experience (humorous though it may be, involving such constructions and expletives as "sand-n-word", "arab", "hindu", etc).
Kidding aside, one of my earliest posts on this thread was to wonder how someone who personally faced the problem felt about the contrast (North vs South). I offered some tentative thoughts based on my experiences and that of my spouse (who has lived in Florida, while I have not lived in the South at all, but only visited).
IMHO, these are worthy discussions, even if they meander, get aggressive, etc.
--ravi