A lousy school system for thee, but not for me: Why should I ever be surprised that’s the tack California Gov. Gavin Newsom is taking? According to multiple reports, the Golden State’s chief executive and all-but-declared 2028 Democratic presidential candidate is moving his official residence to exclusive Marin County in the Bay Area, out of the deep-blue state’s capital of Sacramento. Why, you ask? It’s not just the “rolling hills and redwood groves … across the bay from San Francisco,” as Politico poetically described Marin County. Nope. Newsom and his wife want their kids in better school…