Anyone who dismisses crypto as useless hasn't used the software.
Here's some use cases I've used in the last month:
I secured an instant loan based off collateral with faxing or calling my bank. Doing this at schwabb took weeks.
Another one, "thegraph" a distributed super computer to make public blockchain data indexed and queryable.
Another, Bitclout, a social network build on the blockchain.
Now the data of my social network is trustless distributed, verified and forkable.
I can build a business on top of it and I don't have to worry about getting the firehouse shut down like I did with Twitter.
Bitcoin was horse that drove the consensus making technical progress of distributed computing. The coins are less interesting than the distributed computing revolution.