Americans started a war that killed nearly 5 thousand American soldiers and hundreds of thousands of civilians for absolutely nothing. We're all pretty much complicit. If there's any smaller group to be mad at, I'd say it's anybody who didn't oppose that course, but more likely, the U.S. military complex.
Ironically, she didn't catch flack for George being president of the Iraqi war, she caught flack for George's stance on LGBT issues when he was president.