These one who said G4 would destroy Kaido and that he would need awakening to fight Luffy back, clearly took a L(with these I mean most like Sanjikun, dude is legit a walking L at this point). Even with adv CoC,Adv CoA and Adv CoO at top of G4, Luffy was losing the battle, his Over Kong Gun couldn´t even knock out Kaido. It clear that awakening will do lot of the job, ofc Kaido will tank lot of the awakened attacks too. Which will lead us to see awakened Luffy vs awakened Kaido.
G4 is not enough to beat Kaido for now...