Why did the U.S. exempt Iraq?
Why of course the U.S. invaded, conquered and occupy Iraq. There is no need for travel ban between these two states for 'domestic' travels. Once the U.S. do same with the rest of the banned countries, then I expect the ban will be lifted. That will accomplish GW Bush dream of  conquering 7 countries. 

"You are either with America or against America."
GW did not allow any middle ground. Either subject to American foreign policy, or war. 

"From now on, its America First only."
Trump did not allow any middle ground. It's not just America First, as every self-respecting sovereign state will say so. It's America First ONLY. 

You know, the U.S. embarked on this war of religious ideology and military dominance in the Middle East about 35 years ago. Wars, destruction and millions of deaths later, the self-destruction finally arrived in the Empire that started it all. 

The rise of Nazi Germany on this side of the sorry Atlantic have begun. By a neo-German.