I am 52, and according to the press most Trump supporters are "old angry white people", right?
You are right. The first thing Bush did wrong was the embedded reporters. The second thing he did wrong was not going all out. If we go to war, we should go in it to win it, not to contain and appease the world's moral conscience.
Regardless, we should have totally annihilated the Taliban through nuclear means. Fuck the collateral damage. If you think that Al Qeda would have not blinked then you are sadly mistaken. Sure the fuck made the Japanese blink.
Had we "nuked" Afghanistan we would have wiped out a significant and sufficient amount of the "terrorists", enough that they most likely would have never regrouped. And after viewing the horror of the American retaliation, that would have even been more incentive. It would also have said to people like Assad and Hussein that it was no-more-Mr.Nice Guy-time.