Bush would have been better off not opening up the can of worms in the first place.
That was the biggest can of worms he brought to the party.
I vividly recall we were having a knock-down drag-out about immigration here on FR in the days and literally hours before 9/11. Bush wasted no time in giving up our border.
And IIRC, he made an emergency trip to Mexico City within a week of 9/11, to take back the promises he'd made only weeks earlier.