The hyper-liberalism, lack of border enforcement, and high taxes. Among other things.
Hyper-liberalism thrives in MOST big cities, not just in California. You know that.
Lack of border enforcement happens in Arizona, New Mexico and Texas too only MORE people want to come to California because there are MORE jobs. Get real. People sneak across the Canadian border too but only a few because there aren't so many jobs up there. Yes, illegals go to Canada FIRST then sneak over the Canadian line. What do the Canadians care about borders? They have an open frontier.
High taxes, yep, but nothing compared to New York. New York City has its own income tax.
So, before you shoot off your mouth do some reading first. It's obvious you have some "issues" with the Golden State. 38 million people are here, while MANY states in the midwest and north east and north midwest BLEED people.
Maybe it's just the weather; ice and snow for months and months on end must get old.