The technology can change the economics of identity, but identity itself reduces to how you organize to provide recourse to people within your scope. Sure, we can use escrow systems and smart contracts, but these still require a means to organize and provide adjudication.
All the use cases for digital identity are about enforcement and liability, and there are almost none that anyone would volunteer for. In this sense, identity is necessarily imposed, so all products in the space are necessarily aimed at a customer who is imposing identity on a group. It's why I tell identity companies who ask to find some other problem to solve because holding out for some government to adopt your product as their source of sovereignty is a waste of time. There is one other use case for identity, and yes, it is decentralized and bottom-up, because it is about dividing into secure, self-sovereign affinity groups, and the reasons for doing that are on a very short list of uses. Super fun, but basically a weapon.