If by blockchain you mean a merkle tree then sure I might agree with you. If by blockchain you mean one of the various crypto currencies with a consensus protoc

If by blockchain you mean a merkle tree then sure I might agree with you. If by blockchain you mean one of the various crypto currencies with a consensus protocol then I don't really see the appeal. A merkle tree has some useful properties for verifying the integrity of your data cryptographically. As such it is a useful way to distribute a ledger. But in this particular domain there is no double spend problem to worry about so proof of work and most other consensus protocols are... wasteful at best.