Banks only need borrowers which should meet a bank's criteria for loaning to them
If you don't of course mean by something borrowers, it pretty much proves that you don't fully understand how modern monetary system works (otherwise I don't quite understand myself what you meant to say). You won't believe me but I met a guy here who pretended to be a banker himself and who tried to ridicule me at first but he was in for a pretty rude awakening when confronted with what real bankers (for example, the former governor of the Bank of England) say themselves. After that I haven't heard a word from him, whether he is a real banker and not a plumber in some obscure bank office. And yes, money created in this way (through loans) is not very different from how bitcoins are mined in respect to centralization or lack thereof.
My credentials might or might not impress you but that is hardly the point of such a conversation as this is it
The main differences I like to point out:
1) Public vs. Private
Public coins (like bitcoin) are created publicly. Everyone can see how much and when, and verify the totals. Private coins like the dollar, pound, and yuan are issued in private. Who gets to know how much, and when, and in which accounts specifically is always an EXTREMELY carefully guarded secret and is NEVER verifiable by the public.
2) Discretionary vs. Deterministically
As you say: "meet a bank's criteria for loaning to them". Of course you mean meeting the criteria of employees of a bank who have the job of selecting who gets to have money and at what rate. One person might want to approve a loan for a forestry project. Another might prefer a school. Dress properly and speak with the right accent of course when you apply. Bitcoin isn't really like that is it?
When people say money is "created through loans" what they are trying to say is that newly issued currency is often immediately loaned out. It is often loaned out to lenders. But not always. M0 paper for example isn't usually associated with a loan when it is minted. How many M1 accounts are created with no required payments? Again a bit of empathy in this field goes a long way. Put yourself in others positions and ask how you would run the operation.
You are still to challenge my point in the discussion of fixed vs floating (adjustable) money supply in the case of expanding (contracting) economy. Counterfeiting is inconsequential to the issue in question
Counterfeiting is my word for an "adjustable money supply". An effective counterfeiter is one who competes in minting (see e.g. Newton and the Counterfeiter) It's exactly the same thing, lets call it issuance. There is the question of public vs. private issuance, but I know of no public currency which allows for discretionary issuance. It would be easy to make such a thing, basically one could just build bitcoin with a separate clause "any coinbase signed with the following keys can create as many coins as they like at any time". Do you think such a project would be worthwhile?
But hey you already know my opinion. A floating (adjustable) money supply has but one purpose - to confiscate the wealth of the people using it. Claims otherwise often made by those in the employ of the counterfeiters are usually tedious, comical, and easy to spot. I'm sure you are familiar with the relevant quotes on the topic from e.g. Henry Ford, Herr Rothschild, John Calhoun, Louis T. McFadden, and various others. Thanks I will check out more Taleb