The maps showing the demographic concentrations of specific ethnic resident within cities, these tables and figures illustrating the population growth of particular ethnic or racial groups in select geographic areas, are really irrelevant to the discussion. The issue is illegal immigration by ANY foreign national, of any ethnicity, not the influx of any particular group.
Do we have too many Mexicans in Los Angeles and San Antonio? Are there too many Germans in Milwaukee? Are there too many Cubans in Miami? Are there too many Irish in Boston, too many Greeks in Detroit, too many Norwegians in the UP, too many Italians in Philly, too many Koreans in Seattle, too many Mormons in Salt Lake City? That's not for us to judge.
Mexicans, like Germans and Cubans and Poles and Russians and Scandanavians before them, should be expected to assimilate into the American culture - our language, our work ethos, our respect for the rule of law and property - as a precondition to their authorized entry here. No welfare from the people of the communities they are joining. If they don't have employment or a sponsor, they're not welcome here. Period. If they're not given a means of life sustaining resources by a third party (i.e. Government), they'll leave on their own. They won't starve when in the umbrella of family and friends in their homelands of Mexico, or Somalia, or Estonia or Malaysia. The guy with a sturdy back isn't going to bring Grandma and the toddlers into this country with him if there isn't some insipid ghoul from a Social Service Agency, Immigrant Support entity or left-wing religious advocacy mob there to take Grandma and the kids by the hand, and walk them down to the County Center to get them signed up for the food stamps, health care, housing and enrollment into public school systems that they are going to need to live amongst us.
If we have 20 million, 30 million or 50 million native born Mexicans here legally, working honestly, embracing English language and American cultural tools, obeying the law and raising their families in a peaceful, honorable and prosperously constructive manner, that's fine with me. We've got plenty of room for newly arrived Americans of good faith, hope and conduct. That's what we're about.