Likely his constituency (or, at least those that vote...) are Tejanos or generational (naturalized) Mexicans that don’t want their jobs taken through the LaRaza activists.
And, why do the mooks from from Central America get to claim LaRaza membership?
They are heathen mesoamerican tribes.
Just a reminder.
Chin up FReeQs!
https://www.youtube.com/watch?v=yAnvjgkw7M8&t=5s