It really doesn't mean a person is racist. referring to people as black or white or hispanic or otherwise defining them by their appearances or ethnicity defines them as racist...
People forget that the civil war was fought for more than just the right to "own" slaves. It was fought primarily for the right of each state to determine their own laws, for their own autonomy. That was the biggest issue. It was mainly the North who decided to push the issue as being mainly about slavery. Yes, that was part of it, but again, that fell back on the right of each state to set their own laws, some of which was whether slavery would be legal, state-by-state.
The southern states decided to secede in order to be able to govern themselves.
THAT is mainly what the confederate flag symbolized- a rebellion against the union and the right of the states to self-govern. THAT is why you will be seeing more and more "rebel" flags in the years to come as more and more people are getting upset about the federal government eroding our freedoms and pressuring the states to comply, mainly with money, to federal rules. More and more people are unhappy with the constitution being used as little more than toilet paper by the powers that be (and have been).
This has little or nothing to do with racism, and more to do with dissatisfaction with losing our rights to live our own lives and make our own decisions.
In my opinion, the only people who are really racist are those who keep using racism as an excuse, or who keep referring to others as black or white or hispanic. If you truly believe we are all equal, you won't even define someone by their color or ethnicity, yet we see that from the highest "power" in our land on down. Get past defining someone by their looks, and we stand a chance of true equality. Keep calling others racist, and you are setting yourself up as superior, which defeats the idea of equality.
And, for the record, I was born and raised in the north and taught all my life that the south was wrong and the union was right. I just happen to see now that the control that is being exerted over every bit of our daily lives is a bad thing, and I understand better why there are more and more who are against a big goverment... If you judge others by what they wear or how they appear, then you are more part of the problem than the solution. Sorry to be so blunt.