The biggest myth is that we are fighting for some greater good in all these Muslim lands.
In fact, we are fighting as proxies for one side or the other (it varies) in their Islamic religious civil war of +/- 1000 years.
For about a hundred years, the Muslims were not much of a factor in war.
Then a combination of the Cold War and the geography of oil, and, perhaps Henry Kissinger, combinded to transfer vast wealth to Muslims, who otherwise could not compete with the West.
That wealth was used to promote radical Islam (Wahabbism from Saudi Arabia) and the Ayatollahs in Iran. It has been used against us repeatedly. We did not fight in the Middle East because of being for or against some Muslims over others. We fought because our civilization depends on the fuels from the Middle East, and we have been attacked by Muslims fueled by oil money.