You have to extend that thought to see the fallacy... if that were really the case, everyone would be shooting .22 Cals or a hybrid .17 cal or maybe .14 cal... no, recoil is not an accuracy issue, it is a mental issue, with some obvious exceptions. Nobody is shooting 6mm better than 6.5mm solely due to the recoil, just as nobody is shooting 6.5mm better than 7mm due to recoil, same for 7mm over .30 cal and so on and so on. Either recoil is an issue for you personally or it is not... but it is not solely responsible for your given accuracy... you are responsible for your accuracy, and your gear is responsible for your accuracy. Recoil is however, a convenient scapegoat... particularly for those afraid of it.
That is, unfortunately, hogwash.
Recoil is the the physical effect the rifle imparts on the shooter. It is physics. Specifically Newtons Law.
Recoil is measurable, calculated, and predictable.
What is not, is the shooters reaction to that recoil, via reflex. Reflex is an involuntary reaction. That is to say, a flinch. An eye blink. Or many other involuntary reactions to the rifle and its physical recoil, plus muzzle blast.
Everyone flinches. Everyone. Unless they do posses reflex.
As mentioned, flinches can be controlled, tamed, dealt with, etc. What they can’t be, is eliminated.
So recoil is far from a mental issue. It’s the cause of an involuntary reaction to the imparted stimulus.
The logic is extremely flawed in your posts, and certainly reflects a lack of knowledge of how shooting disciplines and shooting itself actually works.
Again, most will find that they will indeed shoot a lower recoiling rifle better than a higher one due to the physics involved.
Recoil, and the reflex reaction it causes, is a problem for most that pull a trigger.
R.