There are certainly good reasons to be concerned about a front end monoculture, and what follows is a curious observation rather than an attempt to discount the points being made here. Ten years ago, we had the opposite of a monoculture. We had new frameworks hitting the front pages of HN every week. We had the shitshow that was Angular 1.x -> 2.0. We had people inventing terms like JavaScript fatigue to express the pain of being a frontend dev at the time. The dust has finally settled and React has undeniably won. I am still kind of groggy from the whole thing and am going to avoid learning web components until it hurts my career to avoid it. I am not singing the praises of React (I don’t like hooks and my opinions really don’t matter), but I am at least happy that it is not 2015 any more and I can focus on building. It is interesting to me that enough time has passed and the sentiment is slowly changing.