That's exactly the critical point: To "create Bitcoin spenders" businesses must pay workers in bitcoin, so they "earn Bitcoin". Workers must spend most if not all their earnings.
Economically, that can only work if we re-create the socalled "Wage Fund" in Bitcoin like we had in Gold Standard times before fiat.
It is fairly clear how this can be done and built.
Too few bitcoiners "willing to spend bitcoin"
That's exactly the critical point: To "create Bitcoin spenders" businesses must pay workers in bitcoin, so they "earn Bitcoin". Workers must spend most if not all their earnings.
Economically, that can only work if we re-create the socalled "Wage Fund" in Bitcoin like we had in Gold Standard times before fiat.
It is fairly clear how this can be done and built.