So I still stand by my point that poor white people aren't likely to have undocumented people living in their household at all. Regardless of race.

>I've known a number of local households that had undocumented Canadians, Brits and Germans.

Also how many of those households were poor? There isn't nearly as much incentive for a poor Canadian, Brit, or German to come here as an undocumented immigrant because they'd be giving up guaranteed health care and far more permissive social services.