find the kid, find the mother, deport both, expose the fakers
1) The kid is almost certainly an American citizen (most young kids are born here). There is no evidence other then the Spanish sounding last name that the mother isn't a citizen. You can't deport an American citizen even if they are Hispanic (and not even in Arizona).
2) There are plenty of American Citizens who are appalled at the way the United States treats undocumented immigrants-- and we are particularly disappointed at the Obama administration. Some of us are Hispanic, some of us are even white (and non-Hispanic). Again, since we are American Citizens, you can't deport us (even if we have brown skin).
3) The idea that black people and brown people don't like each other is nothing but a conservative wet dream. Black groups have been generally supportive of Hispanic issues (as they are often aligned). Several prominent black Americans and black organizations have spoken out in support of the Arizona boycott.
4) Obama owes his victory in several key states because of Hispanic voters. In spite of the fact that we are disappointed that he hasn't acted, he still has widespread support among Hispanic voters. Obama's rhetoric has been generally supportive of what Hispanic Americans want. People are getting frustrated, but in generally people understand the real limits of politics.
5) The real animosity between Republicans and Hispanic Americans. Republicans keep passing laws that Hispanics find offensive and threatening-- and they keep using rhetoric that Hispanics Americans see as a slap in the face. Attacking the use of Spanish in public life, or referring to Miami (a predominantly Hispanic American city) as third world city, or referring to brown skinned immigrants as a "disease" or an "invasion" are not very good ways to endear yourself to Hispanic-Americans.