Are the Iraqi people blind?

We "liberated" them and they still line up to join terrorist groups out of a deep hatred that i have never and will most likely never feel. Who cares if we killed their brothers, husbands, sons, fathers etc.? We "LIBERATED" them. They should be thanking us for the tanks parked out front and the nightly gunfire and mortars. Who cares if we upset what little balance there was in the Middle East and weakened the only country keeping Iran in check just to secure oil? They're "liberated" and now have a force fed democracy. What are they so upset about?