What does that have to do with people wanting to come to America for a better life and who aren't bitching about America?
My paternal grandparents came to the US a bit over a hundred years ago. They were what are sometimes called "Volga Germans". After the failed 1905-1906 revolution they saw what was coming and got out. Had they not they might have been purged (using the term broadly) for being land-owning farmers, for being that in the Ukraine, or for being German (despite being second generation Russians). They would not have lived to see 1945.
They came here, settled, were farmers, and were naturalized citizens. Four of their five children were born here, and the one of their sons who were not 4-F served in the US Army in WW2, against the Germans. They were investigated by the Feds as "suspicious" during WW1 (common for people of German heritage in that era), and in the 50s their daughter who was naturalized when they were had her right to vote questioned because she was born in Russia. They and their family were not treated as badly as Japanese or Chinese immigrants and their families, but not entirely well, either.