They Risk Upsetting The Bulk of Their Customer Base

[Tonus]

Lee stymied a superior army for years, handing them defeat where they expected victory -in open battle- on the enemies terms.  That's why.  Both sides were still entrenched in napoleanic nonsense....and yes, guerilla tactics work much better (although the guerillas weren't exactly winning hearts and minds - they were nasty motherfuckers) - but that just wasn't the prevailing paradigm.  Union victory was pretty much ensured at the outset, and it was only through mismanagement that this situation ever changed, or even -seemed- to change.  Lee, again and again, took advantage of that mismanagement though, as mentioned, he was notoriously incapable of closing the deal, of pressing what he -had-.

I think that Lee was smart enough to realize that he couldn't win, and so instead of playing it conservatively he decided he'd take risks and try to force the issue. So many of the Union generals who faced him probably understood the first part of that equation and therefore wound up doing the opposite of Lee, which played into his strategy.

As for the issue with the "Confederate Flag": whatever its origins or the accuracy of its portrayal, it's become a symbol of slavery, racism and intolerance, unfairly or not. The swastika may be more than 12,000 years old, but today it's a symbol of the Nazi regime and all of the awful things that it did. I don't think that it can be salvaged; I think it's time it was put aside and serve as nothing other than the reminder of a pretty dark period in this countries' history.