My opinion on this topic is the absence of purpose. When you remove the struggle as you put it we need to have purpose outside of ourselves. We are an incredibly self centered culture and many lack purpose. When you dont have abundance your purpose is aimed at survival. We have abundance. I dont think that is the problem. The problem is that we focus on ourselves to much. Even when we are focusing on ourselves in good ways like self improvement is the purpose for a greater cause outside of ourselves?