I do not think that the crypto industry is dying, but it is only beginning to become popular among people. For many, this is an alternative to state currency, for some, a source of income. This is a huge industry that is not so easy to stop.
I would like to believe what you say and that the long fall of many altcoins will turn into growth, as it was in 2017.
You just think how big this infrastructure is, how much money is invested. It just wont die, but as always, only a few percent of users will be able to get a profit.