Yeah. Pick your analogy:
- React is the iPhone of the frontend library world. Not the first, some will never say it's the best, but it put things together in a way that resonated with people and organically conquered a ton of mindshare.
- React is the Model T. Before the Model T there was a massively fragmented landscape full of mechanical wizardry and bespoke manufacturing. After the Model T the industry was larger, more consolidated, and standardized.
I don't believe that React will dominate forever. But I do believe that, 50 years from now, people talking about the history of the frontend will view React as the defining thing from the era we're in now.