When you realize that none of these frameworks are even an improvement over jQuery, it becomes clear what the true motivation is.
For example, here is a SQLite playground that I built with a friend https://sql.glitch.me/. The entire frontend is only 100 lines of Javascript thanks to jQuery. I'd love to see what the React implementation looks like.
If you tinker hard enough, you can achieve those with jQuery, but it'll never be as easy as React.
Also, your site doesn't load (project not found)
JavaScript Fatigue inducing media tries to taint jQuery calling it all sorts of things but that hasn't stopped me. Sure you need to learn and use a handful of useful patterns to build with it, but it's the same situation if you want to make proper use of any framework.
And I updated the url for my demo :)
1) This is probably a project I want to check out, if it pertains to my stack, and
2) This is probably going to stick around and not be unsupported very soon.
I would be just as happy if FB hadn't developed it, and instead it was just used by them. (Or any other of maybe a dozen big camps) Or if it was just used by a whole lot of people.
Widespread use is a pretty good metric for what library to choose, when you aren't familiar with the landscape.