Yeah, as someone who started out in JS with procedural jQuery, moved onto prototype overloading shenanigans with classes, and now React with functional components - the JS ecosystem and tooling is still a huge mess, but I wouldn't want to go back to jQuery or prototype class hacks. At least a modern React codebase has a whiff of engineering to it. No matter how carefully we did stuff the old way at the companies I worked for, it sooner or later became an unmaintainable mess of hacks and overrides.