They can be offended if they are being mistreated legally, or even treated differently legally. But not for something that happened to folks they never knew. History is not worthy of being offended over, even for Southerners.

I still say that Blacks would NOT be better off if slavery had never happened (so long as it didn't continue), and Southerners WOULD be better off had we won. *snort* And I also know that war wasn't about slavery, regardless of the historical rewriters. And further, that the war didn't end slavery in the north, and the Emancipation Proclamation didn't either. So, the northern attitude is a bit hypocritical.