You said it right here: nostr is ONE WHOLE SYSTEM. That no one entity can control or censor, you own your identity across all relays, and relays can come and go without effecting your whole identity and all your content.
Discussion
That's true. Nostr is way better, but still far behind in regards to membership. Most people who hear about Nostr think it's just another bitcoiner network due to it being anonymous. After the X debacle in Brazil, people are kinda wary of "unmoderated"/decentralized social media. I've heard a few politicians talking about Nostr, but haven't seen many here. Most prefer Truth, Gettr or the mainly known ones like X and Threads, due to their public also being there.