His basic conclusion, Californians got what they asked for forty years ago and it doesn't work. The students favor more government services and higher taxes on the "rich." However the number of rich in California has dropped dramatically, so higher taxes on them doesn't pay the bills.
In passing, Hanson makes one observation that is correct in my experience: the drastic (and unwarranted) increase in the number of administrators at the state's universities and colleges. My college at the university at which I taught for 30 years has escalated from one dean and three department chairs to one dean and three department chairs plus two associate deans, two assistant deans, and an advancement associate, whatever that is. Perhaps he or she is the partridge in the pear tree.
According to the university website, the number of people in my college's administration has more than doubled and yet its enrollment is not significantly larger. How can this be justified?