I didn't say JavaScript framework - I said front-end framework. Started in 1988 with a framework called Dataviews. Was the bee's knees in the late '80s and early '90s and sadly is superior to the majority of present-day frameworks. Next framework I developed in was X-Windows. Then Motif. Then Generic Logic (awesome, and still exists!). Then MFC. Then Tcl/Tk. Then Netscape-era HTML. Then IE5-era HTML. Then IE6-era AJAX. Then ASP. Then ASP.NET Web Forms. Then XAML. Then ASP.NET MVC. Then JQuery. Then Bootstrap. Then Angular 1. Then Angular 2. Then WebComponents. Then React. Then ... the pace has been picking up! And I've only listed frameworks which I have used to build commercial apps - thus leaving off lots of other stuff I've played around with over the years, like Next and Mac and Android and iOS.

>but that hardly means it'll die off in the next couple years

History says you are wrong.