Todd I think the credits mostly go to the car owner and not the manufacturer. Nearly a half of a trillion federal dollars has been given to subsidize the gas and oil industry since 1918 so in comparison, any solar, wind geothermal incentives to date are de minimis. EV subsidies are part of the federal subsidy program in the efficiency section of the budget (same part that subsidizes efficient refrigerators).
I'm not arguing that it is the best process, but it makes sense for the future. Gas and oil are just going to get more scarce, dirty and expensive. We need alternatives and EVs are one. They truly aren't perfect but are getting better. I would welcome a hydrogen powered alternative, but because of the energy density complications, I suspect that is further away.