That effect is probably much more so about where the language is used (US vs elsewhere primarily) rather than how much people get paid for that language in a particular place.
I find that at least in The Netherlands the vast majority of job offerings are quite conservative in their 'stack'. It's nice that they are now okay with React rather than only Angular, or Python instead of just PHP, but finding a Clojure or Elixir shop is still much like finding a unicorn. And my impression is that this is true in most of the EU.
We have a few in Copenhagen. I've worked at a small startup using Clojure and a big government project using both Clojure and ClojureScript. I've also interviewed at one of the big car pooling apps here and they used Clojure. Now I'm working at a university also writing my code in Clojure and ClojureScript.
But you do have to be diligent and spend some time to search for them. That stack you mentioned is definitely extremely common here too. And in the uni department where I work now the existing research code is still all LAMP stack and Java, so I'm trying to skip a generation of tech and get straight to modernity by introducing Clojure here.