People fleeing California's Oppressive Taxes?

From CBS:
Golfer Phil Mickelson plans "drastic changes" over taxes

The 42-year-old golfer said he would talk in more detail about his plans — possibly moving away from California or even retiring from golf — before his hometown Farmers Insurance Open, the San Diego-area event that starts Thursday at Torrey Pines.
.....
"If you add up all the federal and you look at the disability and the unemployment and the Social Security and the state, my tax rate's 62, 63 percent," Mickelson said. "So I've got to make some decisions on what I'm going to do."

 I expect that a large number of Californians will be fleeing that state in the aftermath of Proposition 30. Will they have learned from the mistakes of California?