LMAO that makes sense. But there are a lot of differences between nationality, ethnicity, and race, apparently (though I get ethnicity and race mixed up a lot)
And fun fact, both of my biological parents are African American 😛😛😛 LOL
Nationality - Where you have legal citizenship and that's what you would see under celebrity's profiles. If you gave up your birthright citizenship, like Mina did for instance (U.S.), then that isn't a part of your nationality anymore, and you would just be Japanese. But if you were Rose and were born in New Zealand (birthright citizenship), moved to Australia and legally lived there for a lot of your life (adopted citizenship) and then moved legally to South Korea and got your citizenship there, your nationality would be Kiwi-Australian-Korean (assuming she didn't give up any of her citizenships)
Ethnicity - Where your heritage is from. You don't necessarily have to be born in this place which it makes so confusing but I think that as long as you have close enough family members who have this place as their ethnic background or their nationality, it's also yours. For example, if you're Jeon Somi your mom is South Korean and your dad is Canadian but you were born in Canada, then your ethnicity is South Korean-Canadian. it doesn't matter what your nationality is, that is your ethnicity. (but she's also South Korean-Canadian because she has citizenship in both countries)
Race - A construct of society/government standards based on your appearance and sometimes your ethnic background. This is what you think of when you think Black, Caucasian, East Asian, SEA, Latino/Hispanic, MENA, Native American/Indigenous, South Asian, etc. This is sometimes based on your ethnicity but not always as you can be Caucasian and still have Latino/Hispanic or MENA, etc. ethnicity. Mostly based on what you look like and how it relates to other people of your race.