I have no problem with Marion Michael Morrison as an actor. He made some very good movies and it is few actors who can turn an acting career into an iconic gig. Even when he stepped outside of the western genre, he did a decent job.
I have a problem, however, with the "cowboy loner cleaning up the bad guys with a Colt and a Winchester" icon. I do not think it is any accident that the three biggest clusterfucks of a war that his country has fought (at least since the British pretty much kicked our asses in the War of 1812) have been fought under the presidencies of two Texans who seemed to confuse the national interest with their testicles.
"We goan go in there and kick Commie/Raghead ass" seems to be the mindset of those two fools. Neither one of them had any conception as to what they were getting this country into and both of those endeavors ended with this country diminished.
We need a better icon than John Wayne. Retire him.