No, you probably can’t. Doomfist is in a good place. He’s a heavily-countered, all-in kind of hero that is either go-big or go-home. And, if the win rates of the hero are any indication, that is more often go-home than go-big.
This forum is ridiculous in constantly saying, “I’m an (x hero) main and I think (y hero, my counter) should be nerfed.” Just stop. You need to learn to flex around and play other heroes that aren’t countered by the 1 hero you don’t like.