If we have that many charging stations there is no need for humongous batteries, they can have lighter frames and engines, be cheaper to buy and repair, less road tax.

As the real Tesla use to say: Balance the source with the load.

It remains dubious where all that electricity should come from. When making a budget and your spending is still larger than your income you look for places to cut. If most of your money goes towards transporting suitcases of money one might consider if there is a need to bring that much.

if hydrogen cant compete it will just die out. Worth a shot tho.