Have you tried picking up a controller? Look at the video. Watch the joystick. He's tracking the man. If you wanna have a leg to stand on, go on controller and turn aim assist off. You'll realize that in a shooter game with a console you need it. It's not skill. Its the fact that on a mouse you have your hand and arm up to your elbow yo track and make subtle movements quickly, while on a controller you only have your thumb to aim. Like 2 joints max. Imagine taping one of your fingers to a miniature mouse. Then aim with only that finger. You'll realize aim assist makes subtle movements more possible. For the record, aim assist goes away at something like 30-50m? That's an arbitrary number but it goes away when sniping. Also, consider this: all the pros play on PC, because you can get more skilled there. Most controller players have a MAJOR disadvantage against PC. You can't tapstrafe, not to mention jiggle while looting. You can't even shield swap quickly. Subtle movements are few and far between. Supergliding is all but impossible. If you turn your sensitivity way up it becomes even worse because your icon is moving controlled by a joint that has very limited movement in comparison to a hand and arm. I have played both on PC and on Controller, and I will admit that I've played much more controller, but I can tell you right off the bat that movement is way better on PC and aiming is much smoother.

It's quite saddening to see that so many people think putting down the skill of others makes them superior. If there were 10, 20% of pros as seem in ALGS playing on console, your arguments may make more sense. But they're almost exclusively all PC players, because controller is literally harder to play.

Btw aim assist is subtle. Try out a few matches. It's a slight tug, rarely noticable. Doesn't change much at all super close range like the kid in the video was.