For non-mainstream languages 95% of what Emacs enables can be done using
multi-cursors and a macro language built in to the editor, and we're in
2023. Those kinds of editors are a dime a dozen :-)
Are they? Multi-cursors, sure, but what other editors have a macro language that combines the power and accessbility of emacs lisp? The only other one that comes close is vim, and, as many critiques as I have of emacs lisp, I can firmly state: it's a lot nicer to use than vimscript.But other than emacs and vim, which other editors allow me to interactively automate portions of my editing workflow? All the other IDEs and editors that you've cited, like IntelliJ or VSCode require you to either find or write a package. That's a much bigger step than just interactively evaluating some lisp to do a one-off thing.