A lot of people are one race, but of several nationalities within that race.My uncle did the 23andMe thing. If I recall correctly the predominant stuff was Mexican (might've shown up as other whatever, I don't remember I just glanced at his phone but his mom/my grandma is from there so), Spanish, Indigenous (from the Mexican side), and bunch of other stuff. Even a few percent Congolese, some Irish, whatevs.
Big time mutts. I imagine that's the case for many.
I did one of those 23 and me things last year.
73% German confirmed
27% a whole bunch of other white countries. Can’t remember all of them.
So yeah most of my lineage is from great great grandpa Schmidt. Saw the Nazi uprising in early 1930s and said “screeeew this”!. Found a way to leave Germany and immigrate legally into America.