Yeah, it's totally a random coincidence that the traitor battle flag was addopted as a symbol by a murderous white supremacist. It totally isn't a legacy of the monstrous failure of postwar reconstruction. It's not like it was popularized and used as a symbol specifically by the KKK and other white supremacist groups, the reason it is considered the "traitor" flag in pop culture, even though as pointed out it wasn't. Ideologies and symbols, the history behind them, totally meaningless, they are all equally valid, and never, ever affect actions. Fuck, I'm sure this guy could've just as easily been driven to kill a bunch of innocent black people in a church if he identified as a buddhist and wore prayer beads all the time.