ClojureScript is Clojure. Which eventually keeps me in the JVM universe where I'm experienced and familiar with tools, libraries, devops and everything around the development environment.

So as a Java developer ClojureScript keeps me a little in a familiar realm instead of jumping to a whole new ecosystem where I have to pick up every new aspect in the tool chain, including the language.

But this is personal, and I have absolutely no experience in these other languages you mention and they may be awesome.