You start out by bemoaning the onboarding experience and then move on to portability and then speak up the idea servers should just be relays and browsers should be the new world order.
Yes, onboarding definitely needs to be improved.
Yes, portability can be improved. Lemmy falls short of Mastodon and not even Mastodon is perfect.
But, what mastodon does so is foster does do excellently is foster the idea that social media is a tool and that users shouldn't be overly attached. Also, perhaps if we learn to value servers, so not treat them as mere relays, perhaps we'll be able to teach value and independence.
The problem is, too many people keep trying to think, how can we make the Fediverse relevant in the modern world? And the better question is, how can we redefine the modern world? How can we normalize the idea of cooperative servers? Whether friends, towns, cities, etc. How can we make it so the people running the servers that host our communities are committed and engaged and not running them at a deficit? I would even go as far as to say that there should be government schemes to repurpose old computers into mini servers and that governments should give everyone a domain like NAME.TOWN.CITY and everyone can run a personal server and get used to it and then they can grow from there.