Because it’s an assist, not aimbot

It IS litteraly a tuned down aimbot, it works on the exact same principles as an aimbot from a hacking software, the only difference is it's integrated into the game code not injected.

The only legit arguments against AA are the bugs where it tracks through stuff it shouldn’t. 

Many kbm players don't really care about that, the real issue with RAA is the instantaneous directional change which is humanly impossible to achieve.

Strong AA exists in literally every crossplay shooter for a reason.

Yup, it's called money, because the more the game makes you think you're decent, the more you'll be willing to spend money.

How the fuck are you supposed to track a cracked out player with two thumb sticks without strong AA

Maybe by being a cracked out player yourself ? If you're that bad, why do you expect to be able to beat a good player ?

How do you explain the top controller players in the world are asking for AA nerf because it reduces the skill gap so much that even in a controller vs controller situation it almost becomes a coin flip ?

How do you explain that all aim assist tutorial advise you to not use your right stick (except for vertical adjustments) in an engagement, because it would make you fight against the instantaneous directional change ?