Oh yes, definitely there are plenty of other tradeoffs involved with CLJS vs JS that are much more nuanced, and as you said, immutable by default is by no means

Oh yes, definitely there are plenty of other tradeoffs involved with CLJS vs JS that are much more nuanced, and as you said, immutable by default is by no means a silver bullet. There's a reason why I still by choice use JS for certain projects when CLJS exists. I was only lamenting what I consider to be the only major deficiency in JS when it comes to writing functional code, one that I haven't really found any viable way to work around, despite being quite happy with most other aspects of the overall experience of writing functional JS.