Crimea has a predominantly ethnically Russian, and Russian speaking, population.

… Because of colonization…

https://en.wikipedia.org/wiki/History_of_Crimea

https://en.wikipedia.org/wiki/1783_Russian_annexation_of_Crimea

https://en.wikipedia.org/wiki/Crimean_Khanate

https://en.wikipedia.org/wiki/Deportation_of_the_Crimean_Tatars

https://en.wikipedia.org/wiki/Dekulakization

https://en.wikipedia.org/wiki/2014_Russian_annexation_of_Crimea

But regardless of that all, just cause they speak the same language doesn’t mean fuck all? That’s a very goofy and immature and frankly probably racist way to look at racial demographics