Question: How come people complicate life?
Answer: As your question suggests life is basically simple, but we make it complicated.
Life – as dictated by Nature’s intelligent evolutionary plan – is simple and perfect, as long as we keep optimal balance, homeostasis in between each other and between Humanity and the Natural system.
On the other hand we have no knowledge of this plan by default, we don’t know what true Natural balance and homeostasis means in relation to Human societies. We are blindly driven by our inherently selfish, egoistic, subjective Human software.
Thus our life is constant competition, ruthless, mutual fight for survival as we try succeeding at the expense of one another.
In order to simplify life we have to learn how to build true, positive, mutually responsible and mutually complementing connections, cooperation above our instinctive program