I already addressed that. It takes time to ramp up production. In the meantime, Americans would have wanted action on the part of their political reps. The obvious out for those reps would have been expanded mass transit, as production costs and timing for a bus or train are going to be more advantageous than the amount required to put the equivalent number of people in cars.

If you want to pass judgment, please try to understand the argument first.

It seems extremely presumptive to think the thousands of jurisdictions across the US would somehow bid out, contract, receive, and begin operating fleets before Toyota et al simply scaled up or redirected shipments.

The much more specialized, lower scale, less adaptive manufacturers of public transit vehicles would face an even more severe form of the same problem Toyota would have, except they'd encounter it after years of normal procurement slowness.