Sen. Bernie Sanders wants to abolish billionaires. You read that right. He says he'd confiscate 100 percent of people's money above the $999 million mark -- as if that would cover a significant portion of the nearly $7 trillion the feds will spend in the next fiscal year. Even if the government stole everything over $1 million, the money wouldn't go very far. The rich don't have enough money to finance the profligate state, and they wouldn't submit to the tax collector even if they did: incentives matter. But no matter -- raising revenue is not Sanders's goal. He just wants to deprive people...