Scott has done other things. And it's not just the Hitler thing he might have a problem with, but his own cynism and jaded view of the world, along with his obvious depression. Kamala is still relatively new to the superhero world. She's still optimistic and hopeful that she can change the world and be better than the people who came before her.
Cyclops has already sort of lost. The world has eaten him and spit him out again.