My late wife was classified as Hispanic by the Yoo Ess gummint, and she hated it. She was of the opinion that "Hispanic" described a person from Spain, and she had never been to or in Spain. So she was white, and [South] American.
End of discussion.
My Mexican American brother in law is mostly Spanish and Portuguese according to one of those testing sites.
He was in the Marines, owned his own small business and has been in two different very powerful unions over the years.
He knows the score and is pretty right wing, not like me though
"They want free stuff" and to "Get paid for doing nothing" is his explanation as to why so many non-whites vote Democrat.
Probably the same reason a lot of whites vote for the Democrats.
Marxism/socialism is a cultural disease.