Tried to explain functional programming (in C# because it's a real world job) to a colleague. It's surprisingly difficult to sell benefits of purity and immutability if the there is no threading going on. Much as I hate JavaScript at least those who touch React educate themselves in right concepts (even if they start using funny non-standard CQRS terminology).
Dunno, I am one of the suckers who learned AngularJS 1. May the whole JS ecosystem burn in hell? Don't mind switching wasm GUI frameworks if I can choose the language.