That's because it's so much more populous. That link shows that CA is 34th in % of workers employed in manufacturing (similar to TX and MA). CA is tops in many, many absolute measures because it has almost 10M more people than the next state, TX.
There are more Trump voters in California than Texas, more Biden voters in Texas than NY, more Trump voters in NY than Ohio, more Biden voters in Ohio than Massachusetts, more Trump voters in Massachusetts than Mississippi, and more Biden voters in Mississippi than Vermont.I'm somewhat surprised that the other response to me thinks the market that is ~1/10 the size of the other is obviously a better place to work. I guess cost of living can have a big impact.