How many nationalities are there in America?

The United States is an immigrant country, not a nation country, and the United States has no nationalities. There are only different nationalities from all over the world, about 178 nationalities, including Chinese.

Those who seek knowledge after 90-Jianghu rookie level 4, please shut up. In this way, you even scold Chinese Americans and overseas Chinese naturalized in the United States.

Also known as "knowledge seeker: so what? Maybe all I'm asking is the abuse of knowledge.