We have all proved the point... you just aren't listening because you are married to your preconceived ideas... and the reason for that is that YOU are afraid of recoil. I woukd bet you have never shot and rifle over a .30/06 for more than a couple rounds, and it got in your head. The reason I said 200 rounds to get over the anxiety is that you have to push past the first few rounds that will likely catch you off guard with double or triple the recoil of your .308 (etc...)... shoot enough and you arrive at the point that we have been talking about... recoil sensitivity (short of physical injury) is largely mental. Those that have moved past the anxiety can shoot a .500 Jeffrey or .458 Lott as accurately as a .22 Hornet or .223.
And now we get into the inevitable "I bet you..." Wrong. Try again. I shoot bigger than a 30-06 often. I've owned 3-4 375 rifles in H&H and Ruger Magnum, 9.3x62s, shoot a lot of 12 gauge slugs. BTW, you never explained why shooting 12 gauge slugs is any different from shooting big game rifles when you don't even need to hit the target.
And no, you haven't proven anything at all. You've claimed something is true. Maybe it is, maybe it isn't. How do we know?
I believe you think so.