I appreciate the ethos of unity, but in a sense it scares me were this ever to be political unity -- because I don't trust it would remain (or even ever be) dem

I appreciate the ethos of unity, but in a sense it scares me were this ever to be political unity -- because I don't trust it would remain (or even ever be) democratic and free. We see so many examples of power hurting citizens in existing nations. The risk if the entire world had one political unity, of losing freedom, is extreme. With multiple nations and blocs, at least some remain showing an example of what can exist in the others.