“when used to define a certain group of people as being better than any other.”
There is another bad faith tactic you are using. You keep appending that on to fit the scenario you want. Race and culture are different things. They can influence each other but they are different. Both shape identity but that doesn’t mean that either most inherently inform a person that they are better than someone with a different race or heritage. Has it often been used that way in the past, yes, but it’s not inherent to the notions of race and heritage.
Your examples paint you as awfully convinced that foreigners are completely incapable of integrating into a new society. That’s pretty bigoty. People can participate in multiple cultures. They can pick and choose and blend them.
“It’s like saying that Chinese immigrants to Europe will be European because they live the European culture”
So is the conclusion you come to that they will never be European? They will always be foreign?