What would happen if the US government bowed to the demands of trade unions accusing immigrants of lowering wages and in the 1880s drastically reduced immigration to the US, already introducing a quota system for individual countries, or even allowing immigration only to the inhabitants of Anglo-Saxon countries . What impact on the economy, population size and US political influence on the world? What would people who would not want to be in the US (mainly residents of Eastern and Southern Europe) do?