[in the great wave of immigration from 1870 to 1920-there was no welfare state-immigrants were diverse-not a flood of illiterate latino peasants (for the most part)-to compare the 2 waves is pure propaganda–america was booming then, not bankrupt]
More Immigrants Needed–by Jack Goldstone
In times of economic trouble—and with gross domestic product (GDP) growth still below 2 percent in the United States, today surely qualifies—many Americans instinctively become more cautious about immigration. If we let in more workers, they fret, the newcomers will be a drain on the economy, dragging down wages and gobbling up services.
In fact, precisely the opposite is true. The National Academy of Sciences recently released a comprehensive report finding that immigration has an overall positive impact on economic growth. Moreover, while new immigrants may have a slight depressing effect on the wages of prior immigrants, they have small to no effects on wages and employment for the native-born population.
https://reason.com/archives/2018/07/21/the-us-needs-more-immigrants