It's seen more as a sign of the south, and proper southern values. These weren't always associated with the Confederacy. But I believe that many who sport Confederate flag decals, today, do so in memory of the best of the south in the hope that more people adopt those attitudes, but not the idea of going to war to defend the institution of slavery. But the Nazi flag has nothing but sinister connotations, again, as I wrote from the destruction of the German family unit, to the perversion of the military, to launching unjust wars against their neighbors, all the way to their brutal treatment of all dissenters, even those 'outed' for supposedly missing a day of work by some sadistic shop foreman, to of course the Jews who were the subject of the coastside resort conference. I think it's very different. And yes, the Nazi emblems, those and the new ones created to replace them, should be banned. No question.
To be sure the Confederacy and Nazi's are quite different.
My point was "some" people express the same reaction, right or wrong.
If some can tolerate the Nazi's then By GOD let the flag fly. The Jews have built a whole museum in DC with all manner of Nazi symbols. Why? So people don't forget.
Conversely there seems to be no one who will stand for the flag, which yes, does connotate a poor treatment of people at some point in history, but it also connotates the richness of the South, independence, support for states rights, the southern belle, the southern gentleman etc.
Seems just about everybody has something these days that offends them. Get over it!