I wouldn't go that far, though there is some fine storytelling and great art out there. Some of the best stuff (e.g., Astro City and Kingdom Come) may come close to being "fine art", especially since Kingdom Come is completely composed of paintings, not traditional comic book artwork. And Astro City manages to explore some controversial ideas without turning into politically correct mush.
If you don't like fantasy stories or the idea of superheroes, these stories probably wouldn't appeal to you. If you can enjoy the Spiderman movie or Lord of the Rings, you might find something worthwhile in the better comic books, which are usually available as "graphic novels" in book stores (you can usually find Kingdom Come in large book stores and often collections of Astro City, as well).
With respect to the original topic of this thread, there is a scene in one Astro City comic book where two female superheroes confront a hack comic book publisher and threaten him because he was implying they were lesbians in his comic books about them. There is no disclaimer that there is nothing wrong with them being called lesbians. They were not happy campers. So, no, not all comic books are infected with rampant political correctness.