The men who died did die for a cause they believed in, right or wrong they they did have the freedom to chose their allegiance. While I do not support white supremacy if that is the real meaning of this holiday. I do support the rights of states. If the citizens of these states choose to celebrate then that is their right. If there are those among them that want to stop the celebration of this holiday then they can petition their lawmakers. It's freedom for all not just for those who agree with you.