Your first post was very accusatory and negative. You clearly do think it's a bad thing in this case, or at least that no one who flies it can be a patriot.
This is essentially about whether the Confederate flag is offensive, and/or if people who fly it are traitors. You're dancing really hard around what your posts obviously implied. I'm saying it takes a lot of cojones and a certain amount of denial to even try to pull that argument off. Even if it's true, it's just about the most benign and State-sanctioned form of treason there is, and in addition to that you will find no single explanation for why people fly the Confederate flag. It means different things to different people, some of which are very patriotic in a bizarre, distinctly Southern sort of way.
From growing up in the North and having spent a fair enough amount of time in the South, the reality is that the Civil War never really ended - it just turned into a cold war. There is still a very distinct identity amongst a lot of Southerners. Something the more bland Northerners will never really get. Something I don't get, frankly. But I know better than to comment on things I don't understand... especially considering that some of my ancestors were quite literally Revolution traitors.
They see themselves as "the real Americans," not the traitors. Being an American is basically an idea - it's something you can take with you. They think they took it with them when they made the Confederacy. And if I turn to the right and cock my head about 45 degrees, I can sort of see where they're coming from.
It's such a subjective and ultimately meaningless thing that I don't see why it's such a big deal. They think they're "the real Americans." I think they're crazy. We have our opinions. But I'm very convinced both of us ultimately care about the country. Their idea of what it means to be an American is also very meta, and even though I don't think most of them know what that is, it's impressive none the less.