The problem I have with Rails is that it's not a complete solution. You can use the generators to scaffold a bunch of stuff but those pages have no CSS and lack basic javascript like dynamically adding a row to a form.

I don't think they need to go all the way to something like react. But a souped up Turbolinks where you can also easily do partial rerendering of pages would be enormously helpful.

The barrier for entry into doing anything is still Rails + Bootstrap/Tailwind + webpack/yarn/npm. Which is a lot more than just whipping some stuff up in rails.