Really? I think its pretty obvious that the complexity of websites (or really, web apps) is increasing every day. For the most part, web sites are not just static content any more. More devices, more users, more features for even the most basic types of sites lead to increased complexity of building something that meets those demands.
>We have build thousands of front-end frameworks and all of them try to solve the same issues that should have been solved by the browsers themselves a long time ago.
Sure, but they haven't been solved so do we just say to users "Nope, sorry, Chrome never implemented this so it's not possible"?
I can't help but think that this type of argument is based on an idealized version of the web where every website can be reduced a personal blog like the "good old days". The web has evolved, and so have users and what they expect from it.
I mean sure, if you are literally creating a personal blog - don't use React. But otherwise, I don't really get this POV.