But Mero would have a shot though

And that all I'm saying with Punk.
I might have a shot at tapping Jorge Gurgel if I drove to his facility near me and rolled with him, seeing as I have some training in BJJ. Nevermind that Gurgel is a 3rd degree black belt in the discipline and has competed at the highest levels in grappling and MMA. But I'd still have a shot.

Do you understand how ridiculous that sounds? It's more of an exaggeration than saying that Punk'd have a shot against Lesnar in a legit fight, but it's not really that far off. Punk is a true White belt in BJJ and doesn't train in his disciplines regularly due to his job. Brock not only trained and competed at the highest levels in combat sport, but won the top belt in his division and defended it in the UFC. Lesnar would not only kill Punk legit, he'd kill pretty much anybody in the WWE locker room legit.
Seriously. I'm a Punk mark, but arguing that he'd have a chance against him is insanity. It may be
technically correct, but that chance is so miniscule as to equate to having no chance against him short of a fluke or freak accident occurring.
And don't bring up examples of worked matches or anything relating to Vader in general (Vader is a known softy in the wrestling business. There are more stories of him getting punked than I can count). Brock isn't that man.
The fact that this argument is even happening is ludicrous.
Oh, and

at you posting a gif of Cain Velasquez, who's been training in wrestling damn near all of his life and training striking as long as Punk's had a wrestling career, beating up Lesnar to support your point. Come on, man.