Quoted:
You're taking spinets of history to make your point. As another pointed out, the KKK burns crosses according to your argument all crosses should be considered as racist symbols. People should take the time to brush up on the politically incorrect version of history. Racism is not restricted or isolated to the south or Southerners. While you continue to mention the Confederate flag being held up during the Civil Rights movement, you have failed to note that during the same period there were norther riots over desegregation as well. What symbols were used in the north during the protests to keep Blacks out of the elementary and secondary schools? The south wasn't the only region of the country to have slaves. New York, Pennsylvania and Maryland had large slave populations as well as very active slave ports.
Your analogy is ridiculous, and burning crosses is illegal in most places. If some black guy wanted to do a cross burning in his own front yard, and he was arrested for it, there would be maybe be a parallel.
There are plenty of contexts in which crosses are viewed negatively. The huge controversy in front of Auschwitz comes to mind. There is a difference between having an opinion, and refusing to acknowledge historical facts, and the perceptions those create.
The rest of your post is more typical non sequiturs that have nothing to do with the reason people are bothered by that flag. It is avoiding the history rather than admitting to it.
What symbols were used in northern racist protests? Good question. I can tell you, the one I saw the most growing up was the very flag from this post. And those waving it were born in Illinois. Another one you see is the Aryan nations flag.