If you say that to a person who insists on taking offense, he would tell you that a white person using red icons might be offensive to Native Americans or people with albinism.
The point is, once you move past the skin, all our blood looks alike. We all share that.
(I agree, though, that some are likely to insist on taking offense. Also, I note that albinos might have a case to complain about non-albinos who are called "white"...)