Luffy didn't defeat kaido 1 vs 1. He defeated him 16 vs 1 while kaido carried a giant island wasting his own energy . You should stop copping first
Kaidou never fought 16 at the same time, so it‘s not 16 vs 1.
Second, the scabbards as well as Killer were fodder and didn’t do anything to him. So what do they matter? Non of the 16, except Luffy did any serious lasting damage. 0 times 15 is stil 0.
And why are you ignoring BM being there as well?
The scabbards didn’t even fight Hybrid Kaidou - why do they matter? Do you also count in Franky, Robin and Jimbei in the BM fight?
Luffy had to fight thru hundreds of fodder before reaching the roof top, yet you don‘t count that in, because they didn’t do anything to Luffy - same way the scabbards didn’t do anything to Kaidou.
Luffy was the only one fighting an All Out Kaidou and defeated him.
Kid and Law couldn‘t defeat BM in a 2 vs 1 and you are out here actualy thinking Kid is on the same level as Luffy lmao
The reason Luffy didn’t get a higher bounty is because the Gorosei are trying not to give him too much attention, they even wanted to get rid of the “D.“ in Luffy‘s name. They try to cover up as much as they can.