I'm a lawyer by training who loves literature and earned a doctorate in English. It would be a stretch to call me a philosopher or a political theorist, hence this anchoring disclaimer to prevent me from sailing too deep into philosophical seas.
I have divided my argument, such as it is, into two parts: the impersonal and the personal. The former is a philosophical case for decentralization; the latter involves private considerations about intimate human relationships around which communities of common purpose organize and conduct themselves. In the end, the two approaches are mutually reinforcing, yielding, I hope, benevolent and humane considerations. Presenting them as separate, however, signals to different audiences whose tolerance for appeals to feeling may vary.
The impersonal argument boils down to this: decentralized systems of order are more efficient, and hence more desirable, because they better account for and respond to dispersed knowledge across diverse communities with unique customs, ambitions, and values. Heterogeneous, bottom-up systems governed by local institutions that reflect native knowledge, talent, and choices more effectually serve humanity writ large than centralized, top-down systems that are unaccountable to local norms and mores.