Get Your Facts Straight
Southern states should stick to their principles and continue to fly the Confederate battle flag over their state Capitols. Although hate groups, such as the Ku Klux Klan, have in recent times adopted the flag as another symbol of their own, the flag is really a symbol of the Confederacy's rebellion against an oppressive government, not the proliferation of slavery.
The South was not rebelling against the federal government to preserve slavery. In fact, the importation of new slaves to the Confederate states was prohibited in the Confederate Constitution. This was not the quickest or best solution because it did nothing to help current slaves in the South, but it still demonstrates that steps were being taken in the South to eliminate the slave trade before the war.
Likewise, Abraham Lincoln did not send the United States into war to end slavery, as several quotes from the Lincoln-Douglas debates of 1858 clearly illustrate. Not only that, but the Emancipation Proclamation didn't apply to slaves in Union states, only the Southern states. That's pretty amazing considering that the author is given credit today for ending slavery.
Remember, if you want to lower the Confederate battle flag just because slavery existed under it, you must also lower the American flag for the same reason. Slavery existed under the Confederate Flag for about four years, but it existed under the American flag for roughly 100 years.