Is the rebel flag bad or not

No not bad, but some see it as a racist symbol, and some see it as a sign of freedom and being rebellious. In some cases (depending on how you use it) the symbol can be offending. But in my opinion people can think what they would like to think, you do you boo.

Its not neccesarily, bad but it has been used several times as a racist symbol, so many people have different view, but since many see it as a racist symbol, i suggest not to use it