Snappy:
Certain things are not in and of themselves "bad". Credit, investment amd borrowing make a modern economy go round - The ability to take out a mortgage to buy a home, for instance. There is a legitimate roll for the government or central bank to stimulate the economy in times of need, or even to rescue an economy in dire distress.
It's the misuse and abuse of credit, borrowing, spending, and stimulus which is the problem. We have most certainly done that.