Utter nonsense. 
Iran isn't our enemy, and the entire Middle East is mired in a centuries long civil war. We need to leave and let them settle things. Iran certainly isn't a worse nation than Saudi Arabia. 
We won the Vietnam War, by leaving. Not long after it was resolved. Our winning was in finally understanding we were not wanted, our killing hundreds of thousand of people make things worse, and we had made a mistake in ever engaging in a land war there.
To win is to be successful. We need to learn to win in the Middle East as we did in Vietnam.
Hugh Massengill, Eugene Oregon