The problem with web3 is that it's a solution in search of a problem. People have decided they should build something around blockchain instead of starting with what they want to build and why

This is the main issue with it yes. Instead of having a compelling user- and/or howter-centric vision of how Web 3.0 could look and why, it was basically just like: like web but with blockchain and yet somehow more centralized and with changes, because we want to make a new thing.

That isn't how you elegantly solve problems and get people to use your solutions.