It's being used by many people today. It's not for everyone. It will evolve and at one point we won't even know we are using it.
The thing about blockchain isn't that it isn't that you couldn't build it with "web2" the thing is it would be unfeasible to do so and still maintaining the trust.
By separating the "owners" of the database from what it gets used to verify, things that are a kind of wicked problem or at least a chicken and egg problem become possible.
Here are a couple of examples from my perspective of what is technically doable but practically unfeasible with a proprietary.
https://twitter.com/Hello_World/status/1465382119811784708 https://twitter.com/Hello_World/status/1463539727202754563
I am pretty convinced that the government will be using this sooner or later too, for things that require transparency, but they are not going to be early adopters (in contrast with the internet where they were)
But I am fine with you not seeing this or agreeing. Time will tell, I put my money were my mouth is :)