Are foreign Koreans from China? Why do they call themselves Koreans instead of China?

The dizzy Koreans originally immigrated from North Korea to China. Only Koreans with China nationality are from China. Others have nothing to do with China. In America, these are overseas Chinese. I'm afraid all those who are related to China belong to a Japanese country, and they look like the Han nationality, just like the Han nationality. Don't post such ridiculous questions on the internet in the future. Don't want to hear it. And the Han nationality is very strange. Do China people have to live in China regardless of their nationalities? Go abroad. Some people say that this is unpatriotic, and it is an old saying. Besides, it's none of your business whether others go abroad or not. After all, ethnic differences have nothing to do with you, right? Neither Korea nor North Korea violated the interests of the other. I have different personalities, habits and ancestry (I don't hate the Han nationality, and I don't like the Han nationality) (Koreans generally like to have something to do with their own nationality whether fighting or making friends) (I don't mean some people) and I am not qualified to criticize other nationalities for patriotism. After all, you even have different nationalities from us. What right do you have to criticize Koreans? Don't say it's China. If there are better people on Mars than on Earth, I will leave the Earth.