Overwatch, playing support, yes it's impressive but it doesn't validate your point as OW is the least aim based FPS around right now. Try something like CSGO with a controller.
I've played my fair share of competitive FPS games at a high level to know that controllers are garbage for it. But anyhow, this is about rip off GPU prices not the tools we use to play our games.
It's related because people are saying they refuse to use a console because of a controller. Console gaming is the cheap option for many refusing to play on PC due to high GPU prices.
I've already stated a mouse is much more accurate. There is no doubting this and accuracy matters. However if people say they are crap using a controller on a console when up against other players using the same peripheral on a console then chances are it's their game skill which is lacking not the controller.
I've played with top 0.01% players in the world in Destiny. And with them beaten the guy ranked number 2 and I think 4 in the world at the time, in fact beaten multiple people ranked in top 100 and their system uses ELO. 1 of them has also beaten one of the top streamers / youtubers too whilst carrying and the streamers team was fully stacked.
I learned a lot by playing with them but what I learned had nothing to do with aiming. It was gameskill. How to use weapons, perks, abilities, movement more effectively.
It doesn't matter how accurate or good your aim is if you have no gameskill. I can have just an accurate aim as a top tier player in fact I'm pretty sure I sniped and killed the guy ranked 2nd or 4th in the world in a fair engagement where we were both playing the same sniper alley.
It's gameskill which picks apart the best from the rest. Not the peripheral, not the monitor, not your ping, etc.
These do make a difference but gameskill is the biggest factor.
The same players in the top 0.01% I played with in Destiny were also top tier players when they transitioned to PC and CS:GO. They found the game a lot harder but their gameskill dragged them up. It takes years to hone a mouse yet they played top tier within days after playing on console exclusively before hand.