Are you saying this after having read up on Stellar[1] in particular or is anything other than "full" decentralization a deal breaker for you?
I think Stellar's model if Internet-style (as in the backbone network infrastructure) organic, federated trust relationships is the most practical and viable approach to decentralization that I have seen.
Organizations decide who to trust based on their relationships with them and individuals decide which organizations to trust for the same reason. That is how trust works in the real world, and for good reason. The problem is that the costs of operating at a global level in the current financial system are very high, which leads to centralized control.
Stellar will potentially allow many different types of new, small and innovative organizations to participate in the same network as larger more traditional institutions, with no restrictions for joining the network. Of course those small organization still have to compete for customers in the real world and the playing field is never fully level, but certainly opens up the game.
I personally just don't see the Utopian, fully-decentralized, f*ck-the-system future that a lot of crytpo-enthusiasts envision. It just doesn't mesh with the reality of how non-technical users operate in the real world. For example, right now the vast majority of US users purchase Bitcoin through Coinbase, because that is who they deem trustworthy. What I do see with Stellar is the possibility for greater innovation and greater individual access to the global payments network.
[1] https://medium.com/a-stellar-journey/on-worldwide-consensus-...