The only revolutionary thing blockchains enable is decentralized electronic cash and financial assets, which are fundamentally bad ideas, and the reaction is justified.
Any other "blockchain" related innovation is just a solution in search of a problem with the real purpose of pumping some virtual asset and selling it off in volume to other speculators. Anything you claim can be done with blockchains (other than decentralized finance) can be more easily done with databases, PKI, hashtrees, ZKPs and other technologies that exist for decades, and that includes smart contracts and anonymous & decentralized communication.