> If you haven't mutated states, you don't have an interactive UI.
React allows you to treat DOM mutation as an expression of current app state.
This doesn't mean that your state itself has to mutate. It's entirely possible to structure a React (and/or Redux) app with fully immutable state, copies of which represent change. (Whether copies are done efficiently, e.g. via persistent data structure algorithms, or naively, e.g. via a deep clone, is secondary).
I'm befuddled where you're getting the impression that immutable data structures themselves require mutation.
React allows you to treat DOM mutation as an expression of current app state.
This doesn't mean that your state itself has to mutate. It's entirely possible to structure a React (and/or Redux) app with fully immutable state, copies of which represent change. (Whether copies are done efficiently, e.g. via persistent data structure algorithms, or naively, e.g. via a deep clone, is secondary).
I'm befuddled where you're getting the impression that immutable data structures themselves require mutation.