We need to embrace biases. You've mentioned there being no global state. In many cases there is no global truth, but smaller local truths emerge from groups with a set of cohesive values. By embracing biases we will encourage polarized opinions, but this is perfectly fine because we don't need to fight censorship here. At some point I'd imagine a group with overlapping and consistent ideals would want to curate their narrative and content. This is also perfectly fine because they can close down their relay to their trusted members, but keep it read only to everyone else. Nostr members external to that community can find value, broadcast it to their exclusive relays and further develop on those ideas.

You don't get the best meal by throwing every ingredient and spice into it. Communities will find the right amount of mixing when they are provided the right tools for it.