I know it’s good for Blue Team redistricting, but I think we need to seriously reconsider the viability of moving every human on earth to 5 metro areas in the US.
People want to take care of their families, and they go where the jobs are. This has been happening for hundreds of years now, I don't know if it's possible to turn it around.
Higher-level governments elected by the electorate of a larger region are trying hard to make it explicitly illegal for those metro areas to do those things.