I don't see the tautology. I think we can analogize to open source and closed source software: "I don’t understand what problem [web3] can solve that [a trust

I don't see the tautology. I think we can analogize to open source and closed source software: "I don’t understand what problem [web3] can solve that [a trusted entity] cannot." "I don’t understand what problem [open source software] can solve that [close source software maintained by a well funded and benevolant company] cannot." A point of open source software isn't that it can create software that would be impossible given the correct closed-source company, the point is to not be beholden to them in the first place. You want to make a change to the software, make it. It's your right. The same idea for web3. Want to make an application to do something and accept payments for it? Release it as a dapp and charge for each interaction. Nobody can stop you from doing that. As for the second part, "the things built will inherently be centralized". I'm not sure what you mean. The dapp gets published, you can now interact with it and it doesn't run on any one specific machine. The interaction consists of you and the dapp (and the miners who adds your transaction to the chain). What part is centralized?