What? Being a blue-collar language is a virtue! C#, Java, Python, Javascript etc. are all pretty much blue-collar languages; Haskell, Scala, C++ (depends), Rust (probably; I don't know much about it) and Clojure (sadly), aren't.
But you're right: "white-collar" languages have the habit of never being too popular.
If "blue collar" means "used in industry for real work", and "white collar" means "a research/niche language", Rust is designed to be blue collar. It's not designed to be a testbed for research beyond what was needed to get safety out of zero-cost abstractions.
But you're right: "white-collar" languages have the habit of never being too popular.