This can require vigorous measures such as sinking continents, lifting up mountains, flooding vast tracts of land, and so forth, but it is always for the higher good. Humans need to see nature as a friend and protector with a long-term view, a much longer span of time than a single human lifetime. That is a foolish notion. It is based on the idea that you are separate from nature. This idea, stemming from your notions about domination and competition, does not fit the facts.
Competition is a culturally imposed attitude.
Babies are not born with it. They learn it at home from societal attitudes embodied by their parents. They could as easily learn peaceful co-operation. It would be more natural and productive. Think about it.