Well, I'm of British and Nordic descent, so I'm pretty much as masterful as the races come.
I'm kidding, just kidding. Seriously, just kidding.
Anyway, yeah I don't feel guilty at all for what some of my ancestors have done. Some of them might have been raping and pillaging Vikings (and slaving, 'slavic' comes from being enslaved, which is what many of the Nordic countries did, I share a last name with Dick Turpin, a famous Highwayman, which doesn't necessarily mean we're distantly related, but if we happen to be, I don't feel guilty for what he did either.
EDIT: Also, I don't like the racial classifications of 'black', 'white', 'asian' etc, especially when the genetic diversity is greater.
For example, I wouldn't identify as the same race as someone from Italy (who is a native Italian, etc, but I can't remember the racial classification, I think it's 'Mediterranean' but I'm not quite sure) because we don't share similar traits.
EDIT 2: Same goes for the other 'colours' as well.