The ethos behind Arduino no longer exists and competitors, hobbiests, educators etc will move onto something else like ESP32, or Pico based designs.
I may add that gasoline cars also have a range drop in winter because it's just about batteries but also denser air, rolling resistance, even oil friction. Some kinds of ICE vehicle diesel struggle to even start. But much of the US doesn't come anywhere close to -30C in Winter, and some states don't even get freezing conditions at any time of the year and even where it does happen its a weak excuse as Norway demonstrates.
So even a sane president were to take office and reverse what this senile old cunt has done, the impact is already catastrophic. Not just to automakers, but to the climate, and to global stability.
Money cannot buy love, nor even friendship.