The point of the ev incentive
The point of the ev incentive is to shape behavior and choice. Any incentive whether financial or intangible (ie:hov lane use etc) helps drive forward the goal of cleaner transportation. Since the current entry level for ev vs gas is higher for evs , the incentive aids in tipping the balance. As with all leading edge technology, We need the more affluent to help bankroll the further development of the technology to gain the price reductions necessary for widespread adoption of the technology. To achieve these goals the only choices are carrot or stick. I suppose those who hate to see others benefit from incentives may feel differently if the stick was used by increasing the gasoline prices to force change.
It has been proven that ev sales in all price ranges stagnate when incentives are dropped. Encouraging everybody to jump on the ev bandwagon is a worthwhile endeavor, and tesla is the thin edge of the wedge driving the goal forward.