The Jewish immigrants who came to the USA during the early 1900s, did so in order to make a better life for themselves. Apparently, so do the illegals. And there the comparison stops cold.
My ancestors did not go on Welfare, they learned to speak English without expecting the public school system to educate their children in their own language(s). They immediately took any jobs they could, often losing work as of Friday and having to start all over again. There was no unemployment insurance, no free medical care, no NOTHING for them. They not only survived, they thrived.
They were in a country that did not want them, simply because they were Jews. But they persevered and made something of themselves. They were religious, morally upright, hard-working family people, whose children excelled in school and went on to a better life for the most part.
They did not rob, mug, murder, assault people in order to get money to buy drugs. They did not carry drugs on their person from one country to another in order to sell them to others. Were there exceptions? No doubt. But the rule was that parents expected the highest achievement from their children, and did not teach them to feel entitled on someone else’s back. And therein lies the very big difference.