This is not to refute your comment, but would you have been able to foresee what problems the internet will solve when ARPANET had 15 sites in 1971? I mean if someone would have told you back then that you'd be able to stream a movie in 4K from more or less anywhere in the world, you'd probably have laughed that person out of the room. So look at ARPANET back then and look at the internet today and how much innovation has happened on top of it. And I'm sure there will be a lot more innovation on the good ol' internet for many more years to come.
In a similar way, BTC will evolve. It arguable already has. All the money flowing into cryptocurrencies and the crypto tech stack drives more and more competition (and yes - also corruption and bad behaviour) and some of it will be meaningful. Just like some tech startups were/are scams, some are kind of useless but harmless and a few changed the world. I personally don't know what problem(s) crypto will solve, but I can see that the technology summons a lot of creative energy. Creative energy that gets empowered through capital and channeled through competition will eventually produce breakthroughs somewhere. Let mankind's creativity run wild and let yourself surprise by the unexpected outcomes!