As long as nostr passes through clients that can censor you in any way. Its not decentralized.
Discussion
I'm not sure I understand? People are free to use the clients & relays they want, no one is forced into anything. You could literally vibe code a client to do whatever you want, you can run a relay containing recently the content you want. That's the essence of decentralization, being free to use Nostr in the way *you* want. No one to stop you, no one you must ask permission from.
It seems like you actually want the opposite, for Nostr to work only in the way you want, and therefore remove freedom from others.