At what point do we stop pretending ap champions aka mages are at a disadvantage?

Like at what point is it time to give Brand the big old nerf to his mind fucking numbing level of damage? At what point do we admit teemo doesn’t need to do 75% of my hp with 1 bomb. At what point can we admit Leblanc is a shit broken bitch and niddales spear damage needs to be nerfed. Immobility shouldn’t be and excuse to bat shit damage.