Well, IMO, React is much better than building the equivalent in jQuery.
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 :)