I don't have a problem with having authorities as long as we can choose which ones to trust (and have limitations on the scope of their authority), and form our own as necessary.
For example, I'll be happy to add and pin my government's authority for the services that they control. I'll be happy to add a group of FLOSS hobbyists issuing certs for open source projects, as long as they are transparent and can demonstrate that they have a handle on security. In both cases, there must be some way to limit the scope of their authority, and ideally do things like pinning the authority so that one can't sneakily take over the other in an attack that results from e.g. misconfigured scope.
I think establishing identity is something that we should learn to do. When John Smith gives me his phone number, I'm probably looking at his face and I know which John it is that is giving me their number. I should also be able to go to my bank and get their cert when I sign up for an account & credit card. I'd like to have additional confirmation of their identity (-> reputation) e.g. from my government, but I don't know if I want them to be automatically trusted just because there happens to be a chain that checks out.
If I'm looking at some entity that I cannot meet in person, I should be able to see who have vouched for their cert and make a judgement based on that.
Kinda like PGP I guess, at a larger scale and with better infrastructure (geek signing parties and wide open keyservers are not good enough). The system does not need to be centralized.
It should be possible to have certs signed by multiple parties, to help establish trust without having everyone agree on a single source of trust. (At this point, I'd like to use a term that sounds smaller and less powerful than authority)
I'm not particularly happy with the model where the chain of trust in every case is established starting at some international megacorps that do who know what, and countless issuers are directly or indirectly "trusted" from the get-go until someone points out their abuse and removes their certs.