My approach for bringing them down is working on better systems/UX than what the closed-silos currently offer...And we have a long way to go.

But...Nostr (and other decentralised social media protocols) can offer things the existing platforms can not do: interoperability.

Imagine the people you follow to be the same from FB, to strava, to spotify... Imagine the content (signed notes) you make are available on different clients/platforms

That UX, perhaps for use-cases and projects we can't imagine today will be so much better than what we have today. I've tasted a little bit of just that switching between my Nostr twitter-like client (Primal/Yakihonne) and the Podcast app (foundtain.fm). It blew my mind.

This opens use cases the existing platforms can only dream about.