There are many successful game genres which are functionally PC-only, because you cannot reasonably play them with a gamepad. See Paradox grand strategy games, for example. Those "potential buyers" never existed.
CK3/Stellaris proved you could do grand strategy on console.
Halo Wars 1/2 proved you could do RTS on console.
Cities Skylines/Prison Architect proved you could do Sim games on console.
FFXIV proved you could do hotkey MMOs on console.
While you certainly can't forklift existing games like aoe2/sc2 onto a controller, I'm pretty much out of the business of assuming consoles are unsuitable for genres these days
