>>4272309That's subjective. Some WNs think having brown eyes/hair it's nonwhite or having Fitzpatrick skin type III makes you racially non white.
The only way to know if a person is white it's by their genome, that is what DNA tests are for. Some phenotypical indicators may point to something but i still believe even the swarthiest Greek is more racially European than a depigmented Lebanese.
In regards to LATAM, it's more complicated because even "white" countries such as Argentina, Uruguay, etc are rather castizos who look completely white. We even have examples of off-white looking people self identifying as white. However, they're still in touch with European culture and have close European ancestors, therefore they identitarialy white in an ethnic sense, but no in the racial sense.