You are wrong. "Fuel" is your sentence is just a metaphor. Toyota is not proposing H1 fusion. We cannot yet create a sustained H1 fusion, nor even a sustained deuterium-lithium fusion, which has the lowest energy threshold.
Stop talking about fusion, people. This is not about fusion. This is a fuel cell, which is a technical term, and does not mean that hydrogen is really a fuel, in the same sense gasoline is. It is not.
I think I get your point but your description of gasoline is misleading; gasoline is also an energy storage medium as it is refined from crude oil.
Hydrogen can be economically produced in many ways. The issue is storage. If Lithium-6 weren’t labeled a component of nuclear weaponry and banned from trade, Musk’s venture wouldn’t exist and there would be so subsidies to gripe about...
Fuel cell technology is an interim technology. More power to them (no pun intended), but do NOT promote it with subsidies.
Then, what makes the car move? I am lost here....