The relay operator's can filter anything out or push your stuff to the side... They can also block npubs a lot do that... Gotta burn those nsecs and stay on the move...

As long as you are broadcasting your nostr events to multiple relays, it would be nearly impossible for a company to remove all of your content from all of nostr. Media on nostr is a bit more centralized, but the blossom protocol is bringing that same redundancy to your media as well, and a few clients are already implementing that. Lightning and cashu decentralize your payments. In what way do you think political pressure could result in you being rug pulled from nostr?