No, after 9/11, and the fact that most of the hijackers were here illegally, any sane person would have sealed the border and taken active measures to throw millions, not all, of the criminal aliens out of here.
Bush won a general election 3 years after 9/11, and there was very little discussion about the border leading up to that vote.
This has nothing to do with 9/11 (while the Iraq war has everything to do with 9/11 and al Qaeda, and Americans have bailed on that mission). It's is a mass-media driven pile-on. And the bulk of the republicans turning on the President now and merely jumping at the chance to join the side they perceive as winning.
President Bush could have closed the borders on 9/12 by executive order and nobody, not the libs in Congress nor the government of Mexico, would have uttered a peep had he done so. I was shocked when he didn't. The President squandered the opportunity of a lifetime to get the illegal situation under control.