There is a pattern.
Fuentes, Fishback, and this Gonzales person.
All Hispanic.
An odd niche where a certain type of 2nd-gen Hispanic desperately wants acceptance from mainstream whites (who, ironically, don't seem to be racist), while hoping no one notices how much more successful Indians are.
I guarantee that long-time Anglo-Protestant white Americans (except for the least successful), are always going to rate newcomers based on income and educational levels. Not race or even Christianity.