There may be some basis for the racial argument, but in my opinion a lot of people weren't interested in MySpace because it used to be just a fancy online scrapbook. Before I joined Facebook, I had the wrong impression that it would be the same thing. Fortunately I was happy to find that Facebook wasn't a scrapbook, but instead some tool that lets you know the exact stuff people are doing, feeling, and thinking everyday by the hour. To me this was the main reason for the migration.