Fedi:
Get easily defederated by 50% (or more) of the network if you question the Jewish oligarchy, or call a mentally unhinged tranny janny exactly that.
Nostr:
Get locked out 90% of existing mobile and desktop clients by those same people, assuming your mainstay relays aren't blacklisted at the application level if they don't coordinate application and relay wide censorship.
Either scenario isn't great, but at least you're not fully censored on the latter.