Though interface builders help a lot, I've always had a problem building more dynamic interfaces through any of the native tools. React, for example, makes that a lot easier.
Try to stay at least a little bit realistic...
One thing is that React is the newest iteration of production-quality declarative UI management. Angular, Backbone, a lot of stuff came bdfore. And all that contributes to a mature understanding
That being said, I forgot about QT quick. That is also pretty powerful stuff. Though the web influence seems there ( correct me if the causality is wrong).
I ask because I quite like JavaFX. The developer/documentation website is fusty and old-fashioned looking, but the tech itself is just really solid. You can tell it's been made by people who have spent their whole careers doing UI toolkits.