I realise that the quotes are supposed to mean sarcasm or something but it's a very poor attempt. Iraq was liberated from a sadistic tyrant who was murdering his own people, hiding known terrorists and trying to get weapons of mass destruction. Yes, despite all the crap in the media about the Nazis Bush and Cheney, lying and trying to frame the poor innocent guy, all the reports show that Saddam was playing with the investigators and just waiting for the sanctions to be lifted (which btw killed a lot more people than the war) to continue building WMDs. I can give you many instances where the Americans fucked up the war and the post-war reconstruction, but that doesn't mean the Iraq war was a mistake. The situation in Iraq between 2008-2011 was a lot better than during Saddam. The real mistake was supporting the Syrian rebels. That, combined with the early withdrawal from Iraq is what made ISIS possible.
As to Afghanistan, I don't see the point of explaining to anyone why a country controlled by jihadists should be attacked. There is really no argument against it.