Grown ass men are men who weigh a normal weight and are of normal stature. But you keep pushing for this angle, so who are the old men Knuckles has fought - Homero and Jacare? Ok, Yoel's an old guy - a genetic specimen and an olympian, but sure. Jacare was 36 when they fought in 2017, same age Jorge will be in this goofy rematch. Who else? Oh wait. 36 year old Mas about to have his 50th fight. 36 year old, surgery riddled arthritis T-Wood. And ancient Maia, the legit 40 year old welterweight. If anyone's beating up old people between these two - it's Usman.
Then what? Can't excuse Whittaker's losses from his proto days? Dude's 3 years younger than Usman, fought those guys as a kid. But he gets no benefit of the doubt for improvement? You're telling me he hasn't improved despite, clearly, being a better version now than he's ever been?
And his chin's cracked cause he got flashbanged by Izzy? Usman just got wobbled by a flunkie LW, dude. You must've missed that.
None of your arguments hold up.