The Bush family is obsessed with oil, though I'd hate to think he'd sell his own country and people out for it. I think he just has both a fondness for Mexico and is a Libertarian at heart. He has said repeatedly that if a business needs an employer, we should accommodate them, a free labor market philosophy that extends to the world. The WSJ couldn't have written it better.
But it does make you wonder sometimes if these are the folks running America:
If only they were that good looking...