No they wouldn't.. look at all the liberals who lost loved ones on 911 and still blame the US for it!
Not just the US, some of them blame Bush specifically. I saw a woman who lost her husband (I think) in the attack on the WTC towers doing just that. I sympathize with her loss and respect her sorrow. But with all due respect, any American who actually blames Bush for 9/11 is either a clueless Michael Moore disciple or a hopelessly naive victim of slanderous Democrat propaganda. Or both.
If any one American leader bears all the blame, and I don't think that's the case, it would have to be the former president who watched the gathering terrorist storm for 8 years and did nothing to effectively counter it. Unless you consider bombing an aspirin factory doing something effective.
Accepting Sudan's offer to turn over OBL to the US might have been somewhat more effective than pulverizing aspirin tablets, but he turned down that gift.