I'm not sure that is true. If you have excess energy, it gets fed back into the Grid where it can be used instead of say, burning gas. If every house had a solar roof, then sure there would be excess energy with no storage,
but until supply starts outstripping demand, that isn't a huge problem.
I think the world does. 99% of hydrogen is made from fossil fuels and automakers aren't interested. We had betamax vs VHS - VHS won. Now we have ELectric vs Fuel Cell - Electric has won.
Again - can you supply some reference data for this? Actually Shell, BP etc all cared about electric motors. They cared enough to ensure that there was plenty of propaganda in favour of oil.
I'd hope that the motors were designed to work with the weight of the car. Anything else would be silly.
Still waiting for any numbers on these purported engine failures of yours.
Does this help?
https://www.fleetforward.com/10169134/tesla-plans-to-mass-produce-robotaxis-by-2024
View: https://medium.com/@strangecosmos/the-five-pillars-of-teslas-large-scale-fleet-learning-approach-to-autonomous-driving-9f6a67aa2d0b
or this from the master plan which you somehow missed:
Ok, maybe I used words carelessly. It wasn't created to make the autonomous fleet, but that
is in Musk's master plan. As the man himself says:-
Personally I prefer a super rich guy like Musk trying to change the planet for the better over Zuckerberg and Bezos.