> If Americans shouldn’t have a say in California and Californians shouldn’t have a say in Palo Alto

"A say" in what subject? Currency used? Sales tax paid? Laws regarding civil rights? Laws regarding non-compete clauses in employment contracts?

We have a complicated legal and governing system that has worked out which subjects are covered at which levels of government. This is pretty much the same with all developed countries. Debating it in black and white terms as you present is not a very reasonable way to look at the issue.