The issue is not about race or the industriousness of the illegal immigrants - it is about following and respecting the laws of this country.
What this whole immigration debate exposes is that, under capitalism, even the laws are secondary to the overarching goal of accumulating ever more money. This is why the Bush administration is turning a blind eye to the illegal aliens living in the US, even as a large percentage of their own party clamors for a crackdown.
The Republicans are courting the Hispanic vote bigtime. George W. speaks fluent Spanish, and he uses it to give speeches anytime he's in Florida or Texas or California. Mel Martinez (R-FL) is one of the most conservative Senators ever. Alberto Gonzales, one of the most conservative Attorneys General ever, is descended from illegal immigrants. The illegals can't vote, but their kids born in the US can, and they'll be of voting age soon. It's a long term plan. (And don't forget that any Cuban who sets foot on American soil gets automatic and perfectly legal asylum.)
Sure, they pay lip service to nationalism and immigration law enforcement on TV sometimes, to appease the nationalist elements of the party, and then they ignore it in practice (apart from a few token efforts here and there) in favor of the Allmighty Dollar. Our entire economy is based in large part upon illegal sub-minimum wage labor. They know it, and they're perfectly fine with that, because it's more profitable.
This is why no government agency will even dream of interfering with BoA's plan -- more credit means more spending means more profits. Is BoA encouraging and abetting the breaking of the law? Yes, they absolutely are. Will the Bush administration do anything about it? Nope, because pushing for hard enforcement of this particular law would be counterproductive to the accumulation of money.
BoA is fully aware of all this, and thus they feel confident in their plan. It makes great sense as a business move to capitalize on this underserved market segment.