> Then don't use it, right?
I don't. Though I would like to from time to time.
ClojureScript is these days selfhosting. If you want to write and run small scripts you could give Planck a try (ClojureScript REPL). The startup time is much smaller.
http://blog.fikesfarm.com/posts/2015-08-22-planck-works.html
Then don't use it, right? There are plenty of use cases for which Clojure makes sense, and where running on the JVM is a perk.