But if investors are shoveling money at blockchain-based startups (I don't know if this is still the case), how do you convince young starry-eyed entrepreneurs that they don't need a blockchain?
Entrepreneurs don't need convincing, the investors do.
Entrepreneurs will go where the money is, and if foolish investors are throwing money at blockchain-based startups, savvy entrepreneurs will take their money, and they should.
Exactly, you're getting at my point. Most of the anti-blockchain opinion pieces seem to be pointed at entrepreneurs or engineers. But how can you blame them for going where the money is.