React was released 7 years ago in may and is definitely the most dominant framework and going very strong, and will be a good career investment for years to come. I think framing that "momentarily" for yourself is making yourself very unhappy - life changes constantly, as we see with this pandemic, and we need to have a little bit or willingness to accept change every five years or so, or perhaps we need to choose a field that has less competition (which is also why we enjoy great benefits and great pay). It should also be noted that both Vue and Svelte are extremely similar paradigms to React, and not at all the big paradigm shift that we saw from Angular to React.
People who think this way in about their relationships (and I used to be one of them) should try to apply the same thinking to an workplace situation in order to see how messed up it is. You're effectively the person at a workplace that is dodging all the unpleasant work and everyone else have to pick up the slack.
I used to hold the same viewpoint - automation is nothing new - but this video by Kurtzgesagt (more specifically the statistics cited in it) convinced be is that automation actually IS different this time (https://www.youtube.com/watch?v=WSKi8HfcxEk).
The big difference is that automation now replaces jobs at a pace that is faster than we can create them. The whole video is good but the particularly interesting stats are at the ~8:00 minute mark.
It seems like you have some stats I don't have access to. Care to share? I feel it implausible that given reduce is a functionality built into JavaScript, very useful, and that it's the worlds most common programming language saying the vast majority seems like a stretch.
Perhaps the knowledgable people here (that unfortunately so far have preferred to be flippant and condescending instead of educating) could provide an explanation of showing us why "Isomorphic JavaScript" is a misnomer?