You're only looking at the positive side of things and ignoring well known issues that will lead to global catastrophe. Consider climate change, loss of biological diversity, soil erosion, mineral resource exhaustion, pandemics, etc. The possible solutions to these issues require global cooperation which we haven't seen yet. Market solutions don't seem to be panning out well.
Market solutions work when applied to the correct areas, same thing with global cooperation. Too much interdependence in the wrong areas can be a hinderance. There is no panacea, we have to be smarter than that.
