You can feel free to detail your proposed way forward. But I don't think I've ever seen anything proposed that isn't active genocide of the less powerful, let along anything resembling justice. Maybe all the mass executions in your plan will be of wealthy and middle class Americans. You might surprise me.
... you really can't seem to figure out a third proposal for changing a population number from N to some number less than N? Have you excluded the middle that hard that only orchestrated murder or Nature's nasty negligence are the only things which appear to you? If you are legitimately that baffled, I am not sure we can manage to communicate at all.