 
  
  
Bullshit.
You often have an incapacity to accept that people can be intelligent, informed, and disagree with you.  You did a really good job of it in your earlier Confederate flag thread; the examples I gave you of people with good cause to have the battle flag in a place of honor slid right off you.
As I learned once again from that Civil War history series on TV recently, there were people who fought under that flag, for very noble and honorable reasons.  They fought as Robert E. Lee did -- not for slavery, but for their homes.  It didn't take long in the war to realize what would be done to the South if the "Yankees" won, and that was a powerful reason for many, white and black both, to join up.  As was especially the case for those who faced Sherman, they knew exactly what they were fighting for:  to keep their homes, crops, and orchards from being burned, their horses taken, their livestock taken or slaughtered.
And for many blacks for fought for the South, that flag held a place of pride, because thanks to it they didn't need the Emancipation Proclamation:  they'd already earned their freedom, fighting for their homeland.
It doesn't take much work on the web to find stories of blacks who went to war as their masters' servants, but who when the master fell in battle picked up the rifle and other gear and took his place.  At least 65,000 blacks, slave and free, served in the Confederate forces -- and had the war gone on, Jefferson Davis' planned to see 300,000 blacks in uniform, guaranteed not only freedom for their service, but land.  In fact it's arguable that if the South had won its independence, the status of blacks after the war would have been far, far better than it was after the Northern victory.
It's politically correct to consider the Confederate battle flag as a racist symbol because we "know" that the North was for equality and the South for slavery.  Yet if you take the time to check, you'll find that in the South, a black working for the government was paid what he was worth, even if that was more than a white working beside him, while in the North no black was ever paid what a white was.
So "what they were fighting for" isn't so easy, so cut and dried:  whites and blacks both fought for their homes, for land so they could have a home, for their friends and neighbors -- and for freedom for slaves.  And their descendants generally know all that, and would find your attitude arrogant and ignorant.