True, but they wanted us gone. Part of being legitimate is to leave when asked, otherwise we'd just be another colonial power.
That's exactly right - Iraq wanted us out of there; and much of the reason was that behind the scenes Iran pressured Maliki to get us out of there. Iran = Shia, which is what Iraq has become post-Saddam.
US stays in Germany, Japan, etc. because they are our friends and want us there; Iraq is NOT our friends, not even Maliki, and they wanted us out. The American people wanted us out, that's exactly why Barack Obama became President and was re-elected President over war-mongering McCain & Romney.
I agree with McCain about he predicted the current state of events, back in 2011. The United States FINISHED the job in Iraq; we left it a stable state in 2011, as stable as Iraq could possibly be, that is. We all knew Iraq was being balanced on sticks and plates, because that's just the nature of Iraq. It was always destined to revert back into warring factions, once we artificially put Humpty Dumpty (Iraq) back together again. This is a big reason why it was wrong for Bush to invade Iraq in the first place; the occupation could never end because the can of worms that is Iraq would be opened. The basic fact is that some countries just can't handle democracy, let alone having a puppet government.
If Bush/McCain/Romney (and the like) warhawks were still in power, the United States would have gone into Syria, Libya and God knows who else, and would never ever have been able to leave. The US could not afford that, either in money or lives.
Iraq is at war with itself, and it will be until a power of natural selection emerges. The big fish eat the little fish. That's just the way life is. Look at the US today, big money (and its lobbyists) is overwhelmingly controlling this country.