Not surprised that Apple is one of the first companies to censor something. If it appeases a large part of the population, even better.

Now games can't show historically accurate events even if they want to. I'm in no way "supporting" the Confederate flag, just like if I support someone's free speech right even if he says something stupid or "offensive" doesn't mean I support that speech. But it's one thing to take down the clearly obsolete Confederate flag from the government's buildings, and it's quite another to start censoring it on websites, apps, etc...