I immigrated to the US as a highly educated engineer from a poor Asian country. My country was poor, but not terrible, not a dictatorship, etc. If I had never immigrated, I would still have done fine, although in absolute terms maybe I wouldn't be as rich as I am today.
My journey was completely different from a farm laborer from Latin America. People like me came through university student visas, converted to worker visas, and paid fees to immigrate legally. We feel that we achieved everything through our own hard work, talent, and grit. We are blind to our own luck and privilege.
We will often look down upon illegal laborers and want the process to be "strict" for them, too. We don't even really understand things through their point of view. Our attitude is the same in our old country--- we are already the elite there, and we have little sympathy for poor people's problems. We call them lazy. If only they would pull themselves up by their bootstraps like we did, they could also have the American dream.
That's us, one type of immigrant. We're not really different from native-born, well-off Americans. The only difference is, we also look down upon those American engineers who whine about being displaced by H-1B immigrants. We have no sympathy for them, either. They need to deal with it, just as poor laborers do. It's just logic.