Add enough pressure and you can even get metallic hydrogen, which has been predicted to be a room temperature superconductor.

Not that you'd want to be in any room with that kind of pressure (250k atm).

But if this is true and can be demonstrated, I guarantee that there are people who will want to try to commercialize it.

Perhaps I'm misreading your phrasing... but why wouldn't they?

It is hard to commercialize a substance that we are unable to create/maintain the conditions to use.

But if someone can demonstrate how to make and hold solid hydrogen in a configuration where superconduction can be demonstrated at room temperature, then you've clearly gone several steps towards addressing feasibility, and you've demonstrated the existence of potential commercial opportunities.