The middle class loves the insanely high taxes in California...oh wait they don't and are leaving the state.
Actually the US average in population growth is 4.66%. California is above average at 5.36%. I don't blame them for not wanting to be in a state that the Federal Government doesn't give welfare to. The easy way is to take the way of the South and have low tax rates and let the Federal Government just cut you a check.
West Virginia is the state with the highest % of the vote for Trump. It's also ranks 50th in population growth (-1.18%).
But if your point is that rather than take Federal Handouts from other states to fund their state, Calfornians use Californian taxes to support California, I think you've made it.