For a very very long time, fracking was not economical, and only through massive government investment did it become cost effective.

Same goes for renewables, and electrolyzers. All evidence points to a future with renewable energy costing a small fraction of fossil fuels, and electrolyzers being cheaper than hydrogen from gas. But the future needs to be built. We can either lose out and buy the tech from others, or be leaders and reap the early rewards.