Are you really as dense as you make yourself out to be?
If the Mexican (not Mexican-American) could live as well as the American homeless, they would never come to the US to pick fruit. The reason the homeless will not do those jobs is the same reason they won't do any job, because unlike people in many other countries, they aren't required to work in order to survive. The social welfare system in the US will allow a person to survive if they accept meager living, without working a minute. Sure they might hold a cardboard sign and parade around on a corner with a fake limp, but they don't even have to do that. That's just for alcohol and drug money.
Don't you think that plenty Mexicans would love to not have to lift a finger to get fed and sheltered? Our homeless would starve to death in Mexico.
So no, the homeless don't defer to the Mexicans, that's not what I was saying. I think most anyone with actively firing synapses understood that already.