The illegal aliens are not the reason Republicans lose in California. If they lost by a few points, your statement may be correct, but the pubs lose by 12 to 20 points statewide. Illegal aliens do not vote by the millions in California.
CA had a chance in the early 90s I think it was prop 108? It’s been a long time. Then they dumped the conservative governor and the state court overturned the anti illegal law.