I proved that the debt is an existing thing and that the numbers that quantity that thing are therefore genuine.
No you didn't, you only said that it's a liability, which is true. Debt, from credit cards to government bonds, is a liability, and a liability can be described as:
the responsibility of a person, business, or organization to pay or give up something of value
You pay up debt (which is the liability) with either assets or liabilities (which creates even more debt). At some point, assets will have to be transacted as these are the promised gains. For example, base money (cash).
Cash is
NOT a liability. It's considered asset. Therefore, cash,
ALONE, does
NOT represent debt. Once someone starts loaning this cash, debt will be created. Agreed so far?