Well you can keep repeating that debt has no value but those that own it by holding fiat currencies, literally every minute, all around the world, receive labour, products and services from the borrowers, who in that way pay their debt. Debt is liability of one and asset of another. Fiat currencies are simply records of asset ownership.

On the other hand, bitcoins, plus satoshis, are just tokens of participation in a fraudulent investment scheme. That person Nakamoto set up a system to produce 2.1 quadrillion of these tokens, and those who want to invest in his fraud buy the tokens or invest electricity in them. After that they own nothing and hold the evidence of fraud participation. Hence, Nakamoto invented a modern way of recording the participants who joined an investment fraud.