I believe that, for any given range of time, the printing has a top limit (on the infinite long run, there is no limit).

Western banks and other seigniorage institutions will only print so much in a year. They can't print unlimited amounts in that span, because they are still not Venezuela-grade dumb and greedy.

But within those limits, they will print. It's in their interest to print. Because of what you pointed out: they are looking for the interest on the principal they are creating out of nothing. So, that fiat will be printed to someone, for some reason. When it comes to retail loans, I'm pretty confident they don't give a flying fuck what its usage will be.

The way I see it, if don't take the loan offered to me, they will give it to someone else. So yes, I would agree with you that I'm making the assumption that I'm just using a part of the inevitable to-be-printed pool.