Don't those consequences follow from precisely the impossibility of a universal society? Why have borders otherwise? It seems very hard to disagree with, in p

Don't those consequences follow from precisely the impossibility of a universal society? Why have borders otherwise? It seems very hard to disagree with, in principle, either premise: "universal" or "multipolar"; if the premise is granted its relevant impossibilities. Would you prefer to live in a world which is necessarily maximally particular; or necessarily maximally universal? Well, in either world, there would be no human beings. And whatever species would exist there could be designed to be maximally happy, flourishing, etc.