I think people will HAVE to work, for some very hard years, on achieving sustainability. Only then will we truly be on autopilot, and will humanity be able to focus its time on other things. Until then, all we're doing is tricking ourselves into thinking life will keep getting easier. Major conflict over resources is coming...
While it's true that we have a lot of work to do, conflict is unpleasant and expensive and people on the whole have a strong interest in avoiding it. Unfortunately, war mongers tend to spend other people's money, so they don't bear the costs; we need to stop supplying them and/or make them pay. If we can manage this, I think our adaptability and ability to cooperate can win out.