I think one problem you really highlight is that, at best, those higher number of devs who can only code in the frameworks think those frameworks are able to sa

I think one problem you really highlight is that, at best, those higher number of devs who can only code in the frameworks think those frameworks are able to save them from themselves. At worst, they're lazy and don't want to take the time to learn the underlying technologies like DOM, CSS, JS, etc...