Right, and popularity is the ultimate determinant of value.
Maybe you are simply ignorant of how many systems might actually run a lisp or similar "irrelevant" programming language in the systems you interact with. From airline reservation systems to banking and high-frequency trading.
JavaScript is not, in fact, eating the world, and nor will Python, Rust or whatever else.
If only other languages could just have been designed perfectly first try like <insert your favourite irrelevant lisp dialect>...