I don't deny that the GOP is squishy on immigration, especially Mexican immigration. My concern is that FAR too many wild-eyed anti-Hispanos think they are somehow going to stop all peole of color from entering the country. Don't kid yourself: there is a HUGE neo-confederate "white is right" contingent that views all races except white as inferior. Most of them in this forum cloak their words very carefully, but I think an objective person can discern intent.
The job of the GOP is to simultaneously weed out THESE people while on the other end changing the terms of the debate to manageable, LEGAL immigration. And there is no one better able to pull this off than Bush. Certainly someone like Buchanan wouldn't begin to even start a dialogue before being laughed off the national stage.