Do I understand the graph correctly that the share of tech jobs in california fell from ~10.5% to ~8.7% while in the same time it 'rose' from ~7.3% to ~7.7% in Texas? Or how are the two different Y Axis supposed to be interpreted?
This is graph is basically How to Lie with Statistics 101. The author seems to be trying to show a correlation where one might not exist.
(Edit: There is also a footnote saying that they're lumping in movie-making, music recording, and television/radio broadcasting into their definition of "tech." Further reason to not really take this seriously.)