You do know that California is a minority majority state, right?

Around 33 million people live here. Hispanics are the single largest ethnic group in the state at around 39%. 43% of our great states population (almost 15 million people) over the age of 5 speak a language other than English at home.

That includes 10 million speaking Spanish, a million speaking Chinese, 750,000 speaking Tagalog, half a million speaking Vietnamese, 370,000 speaking Korean, on and on. It adds up to 15 million people speaking a language other than English.

There are about 2.5 million undocumented workers in California, which is less than 20% of the people that don't speak English as a primary language, and I can almost guarantee you there are thousand of undocumented workers who DO speak English as a primary language. So your projections and racist assumptions (I.e they don't speak English so they must be undocumented) are incorrect.

TLDR you are totally wrong.

Source: Wikipedia page titled Demographics of California. Not linking as I'm on mobile.