It's an edge case because the supply is so small and the hardware is so specialized. If this were an iPhone screen there's be a dozen companies in china capable of producing and selling them near cost if apple didn't interfere, and we'd have plenty of people willing to repair and resell the screens if apple would stop abusing US customs to seize repaired screens as they've done in the past.
I mean this particular one may be an edge case but you probably just described half the products people would want to repair.
And the real meat of the comment is the part about forcing companies to make and sell things.
The point still stands, no ‘right to repair’ can force manufacturers to stock X number of parts, or spin up production lines again, at some future date. Regardless of the company’s condition.
Even the pentagon can’t force that, they just pay a large amount of money to a new company to recreate the original part to the exact same spec.
Theoretically it’s possible to enact new legislation to mandate that something sufficient must be set aside in some sort of escrow system, and punish companies for not doing so, but that would probably result in most manufacturing companies fleeing the US….