Skipping the hyperbitcoinization detail for later.

Debt will cease to exist when we'll stop providing credit. You cannot expect things to magically disappear if you do not make the effort to stick to valued that does not allow it.

Start asking: Are you providing credit or making use of any debt atm? If yes, just get rid of it as soon as possible and contribute to a debt-free world.

PS: Credit/Debt could also exist in a hyperbitcoinization world, so the second question is a nonsense for me.