Why is that the real metric? If you can turn a 1x dev into a 2x dev that's a huge deal, especially if you can also turn the original 2x dev into a 4x dev.
And far from "churning out code" my work is better with LLMs. Better tested, better documented, and better organized because now I can do refactors that just would have taken too much time before. And more performant too because I can explore more optimization paths than I had time to before.
Refusing to use LLMs now is like refusing to use compilers 20 years ago. It might be justified in some specific cases but it's a bad default stance.