Dont you think this is logical, what is this happens this has nothing to do with the failure of crypto but the project who are not worthy;
"At least 90% of all cryptocurrencies that exist right now are doomed to fail, die, or will basically be rejected, because the people who are primarily interested in them are money makers. They're not businesses, scientists, academics or retailers. In most cases, this is due to the initial supply and demand, and it basically just enables them to make fast money"