React is not a complete solution? What are you referring to? It’s a complete solution for describing what you want on the screen and not worrying about how that happens. It comes with build tools. What else do you want?
I agree this does not mean React is "incomplete." It does what it sets out to do very well. But the discussion is often framed as React vs Vue vs Angular, fair or not.
This is false. The ambiguity in this comment (“outside libraries”) speaks for itself. Yeah you probably want to use something for routing, but you really don’t have to at all. Otherwise nothing else comes to mind in terms of “libraries”. Just weird that people spread FUD/misinformation like this. so weird.
This isn't a weakness in React. I prefer react's approach. But it does mean the developer needs to make more decisions.
Angular comes with stuff like RxJS and a wrapper around XmlHttpRequest. React doesn't. Again, this isn't "correct," it's just a different approach. No one is being combative here (except you), just descriptive.
There's no router, for example. I'm a huge React fan, but it's frustrating that the third party router I chose has been through 3 major paradigm-breaking changes since I started my project.
I have experienced consistent quality from the core React team, but their footprint is limited by design, and I think it's naive to imply that relying on ecosystem projects is the same level of "complete" as being able to rely on core projects.