If you hear people say "Latinos should fix their own countries ...", here on FR or anywhere else, then they are racists and I wouldn't p*ss on them if they were on fire. If you didn't hear it on FR then it is irrelevant to our discussion here.
Mexicans should fix their own country instead of coming here illegally. Mexico's Presidente should work on his own country instead of begging for handouts. If he wants cooperation from the U.S. then he can put something on the table that's of use to us like controlling his own citizens vis a vie our common border.
You neglected to address the points I made. Mexicans are coming here in droves, illegally, the other immigrants you mentioned came legally. Also, "how did Eastern Europeans, Russians and Viet Namese get here if our eighty year old immigration policy discriminates against them through its 'Hitlerian eugenics' design?"