Were you aware that if you created an equivalent demographic map of California for 1850 the majority of populated areas would be Chinese?!
There would also be very, very few "hispanics", the hidalgos (landlord class people) having withdrawn back to Mexico proper when the American Revolution reached the area. On the other hand, there would still be a lot of American Indians.
California was never "theirs". The United States inherited perfectly valid "sea to sea" land claims from Florida, Georgia, South Carolina, North Carolina and Virginia. When the Mexicans ran off the Spanish, we fairly reasserted those claims.
Will they teach "that" history in California schools?
Hispanic population growth from 1980 to 2000 in the following metropolitan areas exceeding 300%:
Raleigh,NC 1,180%
Atlanta 995%
Greensboro,NC 962%
Charlotte 962%
Orlando 859%
Las Vegas 753%
Nashville 630%
Fort Lauderdale 578%
Sarasota 538%
Portland 437%
Greenville,SC 397%
Washington D.C. 346%
Indianapolis 338%
Minn-St.Paul 331%
Fort Worth 325%
Tulsa 303%
Source: "Latino Growth in Metropolitan America: Changing Patterns, New Locations," Brookings Institution Center on Urban and Metropolitan Policy. Article was in the Washington Post.