Bush is very concerned about the borders of Anbar Province but he could care less about OUR border in Arizona. That's the essence (and the essential problem) of his presidency and why he does not connect with the RP base.
I don't care for Bush's law policy toward our border with Mexico either, but it is silly to suggest there is any genuine and substantial equivalence between the threats from the al Qaeda infiltrating Anbar Province and the threats from Mexican laborors infiltrating the US across the Arizona border. Apples and oranges. Or, perhaps more aptly, grenades and avocados.