This is like saying "cabinets don't help organize a kitchen if you don't put anything in them" -- I mean, duh, you have to use it right. That's not an argument to have no cabinets.

There's a reason nearly ALL major web applications rely on a _framework_....rails, django, laravel, you name it. These exist because it's really hard to organize vanilla code without a framework. React and FE JS are no different.

If you're arguing against using a FE framework to organize FE code, you're basically saying "We don't need frameworks in general! All code should be inherently organized!" That's not realistic. It's just not feasible when you have a large project.