You can do a lot of things, depends on your goals I suppose. You seem to be really sold on the concept of not learning Rails, so I won’t argue with you further. I personally found Rails much easier to learn and use than React or pretty much anything I use in the JS world.
Rails is built with developer happiness in mind. JS though became the answer to all questions for reasons that are beyond me. You can’t escape it entire so I try to limit how much I have to use it.