Stick to physics, Stevie. “People must change to suit my vision of a better future” is a social policy with a lengthy, consistent, and bloody record of failure. Figure out how to manage what we are instead. You could even call such a plan a Constitution or something.
Problem with that is, as John Adams said, the US Constitution “is made only for a moral and religious people; it is wholly inadequate to the government of any other”, whereas Hawking sees the human race only in Darwinian terms of viciousness overruling any other quality and so would not even understand something like the US Constitution and how it would function if applied.