Yes, exactly, these laws protect people (from forcible transfer), not land (from people settling it) nor political entities (e.g. ambition to establish a state)

Yes, exactly, these laws protect people (from forcible transfer), not land (from people settling it) nor political entities (e.g. ambition to establish a state). I've read the documents in full, especially the Fourth Geneva Convention's 49th Article. It clearly protects people from forced transfer - both the residents of the occupied territory and the citizens of the occupying power. But it does not prevent people from moving of their own free will.