I think there is merit to
@Mockney's assertion that extreme stubbornness is the only thing keeping that flag up. In more mundane matters I can say I've gone the extra mile to avoid giving someone the satisfaction of compelling me to do something. Same thing but a larger scale.
I've never had a strong opinion of the flag; I am bemused when I see it north of the Mason-Dixon line, and "states rights" is the most bullshitting, history whitewashing excuse I have ever heard. I don't care about it being used today, other than the fact that whoever is using it or supports it's use is racist, stupid, or a mean stubborn cnut. That said I do have 2 thoughts on it...
1. Why stop at this version of the flag? Yes, this flag has extra notoriety because beyond slavery and the Civil War, it is a symbol of that terrible nadir that blacks in America experienced between Reconstruction and the Civil Rights Movement. But throughout the south, memorials, named streets and statues to Confederate leaders and segregationists abound. If the desire is to wipe any romanticism of that period from the face of the earth, blowing up the bas relief on Stone Mountain should be next. Streets and schools should be renamed. Memorials banned. But that won't happen.
2. Do we limit this purge to southern anti heroes? Majority of the presidents pre Kennedy were cowards and closet racists.
3. Imagine how the Native Americans feel seeing the American flag. They would have every justification to demand the removal of the stats and stripes, given the long history of betrayal at the hands of the government, and their miserable conditions in reservations today.