Should We Have Stayed Hunter-Gatherers?

A provocative question:

Now before you give in to the easy snort and chortle that accompanies a seemingly absurd question like this, I am going to ask you to take the long view. In this case long means billions of years, and billions of planets. We don't want to ask the question: Is civilization good for you (or me)? Instead we want to ask: Is civilization good — in the long term — for planets and their capacity to support life (or at least technologically adept civilizations)?