I'm working in an IT company. We develop spam filters for emails and anti virus software.
We have a blacklist (for mails from an address that will be filtered all the time) and a whitelist (for mails that won't be filtered ever).
There was a big uproar from our US sales partners because the term "blacklist" is racist. No joke.
Well es tut mir sehr Leid, dass wir nicht wie Deutschland sind, wo man einen schwarzen Fußballspieler sieht und sofort das N-Wort ruft und über Ghettos spricht.
There's lots of black people in the United States, and there's lots of discrimination against them. You have to keep that in mind when you start complaining about the "PC police," etc. Do people get silly at times? Sure, but it's also a real problem. I wouldn't make fun of Germany for not letting people walk around with swastikas because there's some history behind that decision. Oh, by the way, speaking of PC stuff affecting the game, whose fault do you think it is that we can only have the iron cross on German units? Clearly, PC is not just an American thing.
(I meant that all in a joking way, sorry if it sounded otherwise).
My take on including black RET - the USF wasn't exclusively white in real life, so it's weird that they're exclusively white in the game. Including one or two black units would have been nice, since they were part of the US army. I would just have given both RET and rifleman squads a random chance of being black instead of white. There, problem solved. They're the same as the white version so probably no one will complain.