"In order to provide aid to recently arrived Cuban immigrants, the United States Congress passed the Cuban Adjustment Act in 1966. The Cuban Refugee Program provided more than $1.3 billion of direct financial assistance. They also were eligible for public assistance, Medicare, free English courses, scholarships, and low-interest college loans." says wikipedia. Seems like they were lucky to be on the right side of a political battle to me.

You realize that's all dwarfed by the welfare state that we now have for everyone, right?

It's also not the root of the Cuban-American community's success. The earliest waves of migrants were almost all from the middle and upper class. They did correspondingly well in their new home. Wealth is not really a number in your bank account, it's the knowledge and virtues that guide of the process of producing value.

If you took everyone in America's money away and started over, the resulting classes would look a lot like today's. Culture is almost everything.