"We cannot solve our problems with the same thinking we used when we created them." - Albert Einstein
Society/consciousness as whole has some evolving to do before we can realistically consider pie-in-the-sky world peace/resource economies/decentralized power. However even though we may not see the culmination of this evolution, we may be those responsible for initiating change and play our part in the overall evolution of consciousness
In other words, once humans become moral angels, we will not need government. True enough. On that day I too will probably be fine with anarchism. But while humans are not moral angels - which will still be the case for a long, long time, I predict - what do you suggest? Why fight to get rid of a system designed to mitigate the problems when humans are not angels?
As I stated, we are responsible with initiating change - those futurists of us. The evolving consciousness is on a slow path beyond our lifetimes