Hate to tell you this but the total population growth in CA is pulling away from the rest of the states.
As you say, "CA is pulling away from the rest of the states."
http://www.freerepublic.com/focus/f-news/1328890/posts
That's right, tons of Mexicans coming across the border, having babies. But it costs a lot more to rent a U-Haul leaving Californian than going there. That's because all the taxpayers are being driven away.