I think you are making a mistake by only looking at cryptos as "coins". There are businesses being run on and around cryptocurrencies and the cryptoeconomics of

I think you are making a mistake by only looking at cryptos as "coins". There are businesses being run on and around cryptocurrencies and the cryptoeconomics of the blockchain are intended to ensure the perpetuation of the network. As long as there is value in maintaining public blockchains, their tokens (BTC, BCH, ETH, etc) will hold monetary value.