Jonathan Haidt: “Legal immigration from morally different cultures is not problematic even with low levels of assimilation if the numbers are kept low; small ethnic enclaves are not a normative threat to any sizable body politic. Moderate levels of immigration by morally different ethnic groups are fine, too, as long as the immigrants are seen as successfully assimilating to the host culture. When immigrants seem eager to embrace the language, values, and customs of their new land, it affirms nationalists’ sense of pride that their nation is good, valuable, and attractive to foreigners. But whenever a country has historically high levels of immigration, from countries with very different moralities, and without a strong and successful assimilationist program, it is virtually certain that there will be an authoritarian counter-reaction, and you can expect many status quo conservatives to support it.”