You are very wrong about this. Clojure libraries are a very diverse ecosystem, and even a cursory analysis of the most widely used libraries will prove your assertion wrong. Heck, you can't even make custom printers (for your own types) in Clojure without extending the print-method multimethod.

Please don't speak for the Clojure community as a whole, because it spreads misinformation about both the libraries and the language itself. If you want to relate your personal experiences, fine, but your original post and this both convey a sense of absolutism in your characterization about Clojure's features that are just not true.