As a developer, I get it.
What I don't get is why as an owner/stakeholder/CTO/lead would pick the worse tool (in some context) just because everyone is using it. Well, I do get it... I just don't agree.
If you read between the lines here, everyone is just picking React because everyone else is picking React, that's the only reason apparently. It drives me mad, but honestly I do understand it.
Yeah, especially for crud apps when you get to implementing forms. So much easier with rails and hotwire.
But I would be tempted to go react and inertia js for MUI or EUI for the predesinged components and nice datagrids.
Also, I'm not 100% sure it's for the "same amount". To me it looks like Rails jobs have higher salaries, at least around here. But that could be because most Rails devs have many years of experience, I don't know.
In short, it's probably better for your career to work on React.