Yes it has happened or is nearly about to happen. FYI, the LR version of the Model 3 is $50k, about the same as the Mirai. By many metrics they've reached cost parity. Even if you angrily deny this, remember that EV are produced in larger quantities and benefit from greater economics of scale. It's pretty obvious the fuel cell cars are going to get a lot cheaper from here.

And as countries invest more into renewable they're are quickly running into a dilemma: Wind and solar are too unreliable to directly replace fossil fuels. This requires seasonal energy storage to solve, which as of today is only solvable by hydrogen energy storage: https://www.econstor.eu/bitstream/10419/236723/1/Ruhnau-and-...

In short, even EVs will be hydrogen powered to a large extent. You can easily imagine a kind of plug-in hydrogen car that matches EVs on efficiency in broad strokes.

Ultimately, this is not really a difference of opinion but rather a difference in understanding of the facts. You simply haven't realized that fuel cell cars are already here and have already solved the fundamental problems of green energy. Batteries cars have not, and barring a miracle battery discovery will not either.