Here are a few politically incorrect films that would be on my list:
The Incredibles -- It's probably the most politically incorrect film I've ever seen. The recurring them was, "If everybody's special, it's just another way of saying no one is." It was a scathing indictment of the non-competitive, no-winners, everybody passes attitude of post-modernists.
Dirty Harry -- Although it became a movie series, all the following shows were either apologies for the first one (Magnum Force) or mindless action sequences. The original Dirty Harry was about a cop trying to track down a killer, who was opposed by a liberal mayor and DA that were more interested in accommodating evil than protecting citizens.
The Passion of the Christ -- No explanation needed.
Death Wish -- Death Wish was almost a spin off of Dirty Harry. Government incapable of protecting citizens, so a citizen starts taking out bad guys. The government, of course, becomes more concerned with stopping the guy who's killing the bad guys than protecting citizens.
The movies on the original list are not, for the most part, politically incorrect, any more than Bill Maher's television show was politically incorrect. Maher's show was probably one of the most politically correct shows ever on television, because it put forth the premise that all viewpoints were of equal value. It's part of an attempt to co-opt the term to mean simply something that is gross or offends a few people. The original meaning of politically incorrect was that it was a statement of belief that was suppressed by the powers that be (usually on college campuses) because they objected to the thought process. The statements were seldom obscene or racist. They simply challenged post-modernist thinking.
You're right. Great comment.