That's like saying the Glasgow Haskell Compiler is implemented in part with C, therefore Haskell is imperative. The React "way" is very much leaning into pure

That's like saying the Glasgow Haskell Compiler is implemented in part with C, therefore Haskell is imperative. The React "way" is very much leaning into pure immutable data that flows through components which react to changes. Components aren't objects in the OOP sense. You don't call methods on them to update their internal state.