>>3714911she actually isn't, it just sounds like that.
She is complaining about the thing /pol/ warns about in the dangers of racemixing. Mutts don't feel like they belong, they see they don't look like their parents. And growing up that causes a lot of psychological problems, humans evolved to be in groups.
And don't get me wrong, mixed ethnicity marriages are the same way in Europe, but racemixing is far worse since you don't even look like your parents.