Yes, he is, and nobody has said he isn't.
However, you can't honestly expect someone to say "******* Jews. The Jews are responsible for all the wars in the world," and get away with it scot free.
It has nothing to do with "political correctness"
God am I sick of people misusing the term "political correctness" to excuse racism, homophobia and other forms of bigotry.
http://en.wikipedia.org/wiki/Political_correctness
Back on topic though (kinda), the movie looks like it could be fun. The hhhistorical innaccuracy thing does suck though, but why let the truth get in the way of a good story?