Her name is Maria: low class Hispanic?

When you hear the names Maria or Juan, what visual images come to mind? Maybe a janitor working for a low wage, or a cook at the back of a restaurant. Maybe these people don't speak English, and feel like they're stuck in a contry where not only are they misunderstood, but misjudged.
Sadly enough, these people are not only judged by Americans based on their names, but also by Hispanics. If you asked someone from Argentina what he or she thought of the name "Juan", more than likely that Argentinian would point to someone from Mexico or Central America. Is it fair to have these generalizations? Should people be set apart by their own people based on their names?
David, a fair complected Colombian, quoted," I don't know why people would name
their child Pedro. I mean, doesn't the mom know what people will say?". And when asked what he would name his child, he said,"I don't know, maybe something like Joseph or Ashley."
The truth is, we as hispanic people set differences between ourselves. If a Salvadorean was confused for being Mexican, that Salvadorean would be severely offended. On the other hand, if a Dominican was to be confused for a Mexican, that Dominican would have seen that as a compliment. Americans may see us all as "Brown", but we see ourselves differently. Argentinians are mostly of Spanish, Italian, English, French, and German descent. Therefore, they see themselves as European. Dominicans are composed of mostly African and Spanish mixed descent. Mexicans are a blend of mestizos(European and Indian descent), indigenous people, and European people, as most Latin American countries. These, of course, are differences that are concealed in that American vision of what a Latino is; "Brown".
My sister's name happens to be Maria, but a lot of people would easily identify her as "White" or mixed. She also happens to be Mexican American. So why do hispanics discriminate based on names?
"There has to be a way for us hispanics to tell each other apart. If not for the names, we wouldn't really know where we came from", quoted Michael, a European Puerto-Rican.
The only question now is: will we ever be able to come as a people? I don't know, but one thing is for certain; if we continue making differences between one another, we won't be able to even call ourselves a people.