Ryo was used discriminatorily by some Anglos in Texas-New Mexico, insisting on the 'Ryo' pronunciation even when they knew better.

I remember looking for San Juan Street in San Antonio, TX, back when I was in the army and stationed there. The Anglo policeman I asked said he didn't know of any such street, but he finally remembered a San Jew-an street. I tried to correct him and had to run like mad to keep from getting a busted head. My uniform probably kept me from getting shot. I think the majority there at the time were Hispanic, but many wouldn't vote because of the poll tax cost or having to wait for verification at the polls.
Now such discrimination is rare, but that was over 50 years ago.