Aliens have come and kidnapped the first human they came across, unfortunately, that was you. They take you to a new planet almost identical to our current Earth, but without anything man-made.
The aliens say you can have 1 million real humans to start “New Earth” and you can put them anywhere and teach them anything you want. You’ll have 1,000 years to make a good New Earth and if the Aliens like it, you’ll get to keep it, if not they will blow it up and try again with someone else. You will have access to old Earths internet so you will have the choice on what technologies you introduce and when. You live in the ship, but you can choose to pop in and out of New Earth as you please. You will not be burdened with all 1 million humans at once. You can choose to add a small number of them at a time until you get the proper resources established.
Edit: The humans can reproduce, and will unless you implement some form of birth control to prevent them from doing so. Also the first 1 million humans will start with the basic knowledge of how to human and you can pick personality traits for them, like you would a Sim, but the babies they make are blank slates.
You don’t have to try and make it a good society, you can choose to watch the world burn for 1,000 years. Up to you.
I’ve put a bit of thought to this over the years, and I have come to the conclusion that “might makes right” is always going to underpin any society. The people with the resources have the power, and by extension, get to make the decisions. The path to change, if people without resources want something different from those with resources, depends on a transfer of (at least some of) those resources from the haves to the have nots.
That only happens via force, or the threat of force.