That is not a debt to slave owners, that is a debt taken on to pay for the costs of abolishing slavery.
It's also talking about real agreements for an entity to exchange money in the future, for a bond tied to the value of the currency... Not some vibes based moral justification.
It's also talking about real agreements for an entity to exchange money in the future, for a bond tied to the value of the currency... Not some vibes based moral justification.