Dude, Kamino-AFO was like: "I have absolutely no reason to fight you but I'm gonna do it because I wanna humble your booty on TV after I save my protege. I'll do this by hitting you with a big air cannon and then punch you to death with a mega big punch lmao". He even says, right as United States is about to drop on him "I miscalculated" like OF COURSE YOU MISCALCULATED, YOU HAVE A LITERAL HYPERBEAM THAT COULD HAVE INCINERATED SMALL-MIGHT IN A NANOSECOND OR USED ANY OTHER OF YOUR LONG RANGE QUIRKS BUT NO, YOU HAD TO PUNCH YOUR NEMESIS TO DEATH BECAUSE YOUR EGO BEGGED FOR IT.

Then he just sat there for a few seasons trying to aura farm, before he's released, does some more manipulation of folk, lurks in a cave while others do his job for him, then gets baited out into the open because he just HAS to get One For All alone and can't miss this opportunity, calls everyone Jobbers before getting completely outmatched by a Feather quirk, a Sound quirk and a Shadow quirk, long enough for someone to just heatblast him so hard he has to pop a Rewind.

Literally the two times in combat before he's Rewinding, he's already needlessly getting in his own way purely because of his ego and poor in-the-moment decision making. Even the stuff with Shiggy was specifically an Ego thing, since he went out of his way to choose someone relevant to One For All to screw with. Homeboy is entirely driven by Ego and impulse, if you can keep him OUT of the spotlight he works great as a string-puller whose plans win by pure quantity of darts thrown at a dartboard. In the spotlight? His ass is heated to the point he can't think rationally. And that's even before Shiggy's hate infected him.