The library argument makes much more sense if you've been around the block in web UI. There are many precursor and concurrent web frameworks that do much more t

The library argument makes much more sense if you've been around the block in web UI. There are many precursor and concurrent web frameworks that do much more than just the UI: They control data management, dependency injection, etc. For some, the UI is nearly an after thought of the model layer. So maybe its not completely accurate but contextually it rang very true to someone like myself, who had used 4-5 other frameworks before using React, and was absolutely one way it stood out to me.