Teslas are getting more expensive to insure thanks to the manufacturer’s sliding fortunes and reports of vandalism against the cars. There are few markets as pure, heartless, and single-minded as auto insurance. It’s a machine run on actuarial tables and its calculations are telling insurers that they’ll probably have to pay out a damage claim if they cover a Tesla EV. Tech billionaire and shadow president Elon Musk’s personal brand and fortune are linked to the cars. They are a visible reminder...