re: Polish immigrants.
That's unusual because all people who came from certain countries like the USSR and its satellites, as well as Korea, Cuba... (and I suspect Iran for a while after the 79 revolution) had to do was get here. That's it. Arrive, and they got to stay. Period. Fast tracked to citizenship, 24 months (later reduced to 18 in the late 80s or early 90s) free rent, and further assistance and grants and interest free loans for school, buying homes, starting businesses....
It isn't any cheaper for poor people escaping Communism to make it in the USA, let alone in expensive NYC (Greetings from Greenpoint!). "Capitalism bad, work for state in factory" isn't exactly good prep for making it here independently.
Granted, there was like 8 Poles brought along to Jamestown (the only craftsmen the English brought with them! The Brits thought they could just buy what they needed when they got here! "Where's ye blacksmith shoppe, me needeth a plow"!!!!! Gosh damn!), but other than that, like other European and Asian immigrants, their connection to here was zero. That somehow them being here was ok simply because the law allowed it is ridiculous (Prior to the Immigration Act of 1924, all anybody had to do to stay was get here. Unless you were Chinese. The 'paperwork' was their ticket stub for the ship, the wait time was how long it took to sail here. 1924 put limits on primarily non-Europeans. The Immigration and Nationality Act of 1965 eliminated those limits which had favored northwestern Europeans). While those with actual roots going thousands of years do not isn't hypocrisy and illogical, it's just stupid. Plain stupid.
Ok, we got borders, they got borders, they got land, often even more sunshine and rain than us, they screwed up with Chavez and whatever other dunderheads they chose as leaders, they can't stop their own sons running roughshod over them in gangs, so who cares about 500 years ago?
But that goes for others from the other side of two oceans. If they can't make it in their own old countries after thousands of years of domestication, why the hell should they be allowed to come here? Kick em all back. This isn't their land just because they're just as pale as those who invaded it. They can't justify their presence here simply because the law favored them over others. Get to the dock. Buy a ticket. THAT was the paperwork. Literally.
Send everybody home. Stalin is dead. Hitler is dead. King George the CVIIIwhatev is dead. Time to go back.