I am not much for political correctness, but I do try to practice common courtesy.
Some times that courtesy includes doing and saying things I don't completely agree with or understand, so maybe that's what some would call PC.
A good example is the confederate flag, I grew up seeing it as a symbol of southern pride, and sometimes still feel that way a little. However I now know that for reasons I only partially understand some see it as racist and an insult. Rather than sort all that out I don't display or approve of displaying the stars and bars. No big loss to me, and hopefully it makes others feel a little better.
I have mixed feelings on the statues, best not to forget our past, but honoring the defense of slavery isn't what I want. New Orleans used to have a monument to white supremacy, the
Battle of Liberty Place Monument. Last time I saw it was in the 70s and it was a gathering place for black folks protesting, somewhere I have a picture of the monument with people, who looked like black panthers, doing the black power salute. They wanted me to take pictures. Seemed to me the monument was serving a useful purpose, a sign that things were getting better, but not denying our past. Its now long gone - I'm not sure that's for the best.
I think courtesy to others is important, PC not so much...