I think the problem is not the debt, because credit allows for growth to people that don't have enough capital. Maybe problem here is the source of this money,

I think the problem is not the debt, because credit allows for growth to people that don't have enough capital. Maybe problem here is the source of this money, now banks basically create money from nothing, so you can pump a lot of empty money into economy that was not created by being productive. Before that you basically were lending to someone else what you earned yourself.