As a mixed kid whose family is from an obscure culture, you learn pretty quick that the way people racialize you has very little to do with your blood or heritage, and mostly has to do with whatever the individual racist arbitrarily calculates in their head about you based on present context and their personal brand of racism. I've faced racism correlated with asian immigrants, I've faced racism correlated with latin american immigrants, but I am not either of those things, and neither are my family members. My race does not explain my racialization, because race/ethnicity is not something real that people can detect, and thus cannot serve as the material justification for racism. It's an ideology, enforced by the proclivities of the (widespread! violent! powerful!) idealogues, who seek phenotypic (bodily or cultural) divisions between "foreign" and local; between slave, proletarian, and owner; this is why the Welsh, peasant workers, were once racialized in England; the Irish and the Italians, immigrant labor in the USA. They are historical hangovers from bygone power structures, or fetishization (the act of weighing something beyond its material existence) of extant ones, and they are readily created and dissolved given a change in economics, and the subsequent change in politics. Immigrants and historical underclasses, are, after all, no different from their neighbors without a law to back it; Redlining, wage discrimination, and police violence are not so impossible to resolve under progressive rule. While engaging in the language of racists can be useful in some circumstances to describe aspects of contextual racialization, while the language and the customs you grew up with may be important to you, the terms of racism are inherently distorted. You cannot treat them as synonymous with reality, you cannot treat them as materially sound, mostly because they are wrong, but also because regardless of whether you support the racialized, buying into the existence of race as something which exists beyond the actions of its (again, systemically common! politically powerful! regulation-penning and rule-enforcing!) idealogues is, all the same, a form of racism; the ideology (ism) of race. Your race is not real beyond the judgement of a racist; the racialization they enforce upon you is.
I am Chamorro in the same way my friend is Cajun. I am often racialized, she is largely not. I have brown eyes, she has blue ones. We both live in the mainland USA. By sheer weight of relative common ground, you could almost say that that is the only one which matters. I would only cede anything to number two.