Earlier quoted context omitted.
> and now we're making traditional UI dev like web It's been like that on Windows since 2006 with XAML. In fact, if you squint at typical JSX, it looks like XAML. Disclosure: I work at Microsoft.
Or MXML, which most certainly was influenced if not entirely derived from XAML. Everything old is new again!
Today Xamarin does all this pretty well cross platform, desktop and mobile for UWP/Mac and iOS/Android.