White people have been a minority in California already for 10 or 20 years (less than 1/2 of California population)

The most prevalent group is hispanics from Mexico and south of there and then people from Asia as well as the Native Americans who have always been here in California. But, there are people in California from literally all nations on earth. So, there is this interesting mix of people all over California. And often people from other countries will buy up farms or other types of businesses and they will group in different sections of California and own businesses from Trucking to Farms to 7-11s to other businesses all over California. For example, people from the middle East all the way over to Bangladesh are more likely to own convenience stores in California. Sikhs might be more apt to get into Trucking or convenience stores or Farming. Asian people you might see in Los Angeles or San Francisco China Towns or Japan Towns. Each group tends to specialize in different businesses in California.

People from south of the border in California all the way down to Cape Horn almost to Antartica are more apt to open a Mexican or Brazilian or Argentinian or South of the Border type of Restaurant or they would work in construction or farming or landscaping for example. So, each group has it's own specialties in making a living here in California even though their children (after the 1st generation here in the U.S.) might be doctors and lawyers and more like white people who have been here 400 years or more in the U.S.

But, if you are in middle American in a small town and might never have met anyone from another culture ever to get used to people from all over the world you might make up all kinds of untrue paranoid thoughts about people in Foreign countries.

This is why more Americans need passports so they can go see for themselves what other countries and people are like. The better traveled people get the less paranoid and violent likely they will be.