I don’t know one person of Hispanic ancestry-self included-who can stand Hillary, but those who are, or have parents who are immigrants from Cuba have a particular dislike for both the Clintons for some reason.
Since they or their ancestors fled a communist regime, seeing people such as Hillary who are mirror images of the rulers of that particular regime certainly engenders the “particular dislike” on the part of immigrants/refugees from Cuba. That would be the reason, I suspect.