His original claim to fame was trying to get Silicon Valley to secede from the United States lol https://www.nytimes.com/2013/10/29/us/silicon-valley-roused-by-secession-call.html
Taken at face value it isn’t absurd. California has the world’s 5th largest GDP. Our federal government socializes those gains across other states, which is suboptimal for a state of our size.