Non-PC SF has made a serious comeback, although mainly in the military SF sub-genre.
I recommend David Weber, John Ringo, SM Stirling and Eric Flint, among others.
Ringo's The Last Centurion is perhaps the most politically incorrect thing I've ever read, and remarkably prophetic about the Obama administration.
David Weber has written some stories in Keith Laumer's Bolo canon, one of which I liked enough to read aloud to Mrs. T., but he still seems tainted by contact with PC, for all the military bluster. All those women in combat command — meh. I don't care how many years you project into the future, human nature isn't going to change THAT much.
That being said, I'll just hafta go check out Mr. Ringo. Thanks for the tip.