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This is IMPOSSIBLE
This directly means that Kaido's crew is stronger than every other Yonkou crew which is IMPOSSIBLE since they have been stated to be in a stalemate.
This directly means that Kaido's crew is stronger than every other Yonkou crew which is IMPOSSIBLE since they have been stated to be in a stalemate.
Ultimately, Kaido wants to start a fight with the WG and Marines. He can't do that if he only has three commanders, WB was stronger than him and had better crew, he failed. So, for Kaido to even think of going after WG, he needed stronger people. And that is why it is not impossible for 1-2 members of Tobi Roppo to be Yonkou Commander level.
Let's consider another thing. BMPs have four Yonkou Commander level people in it, in addition to Perospero (who is not bad either). WB had four Yonkou Commanders too. Only Shanks has three Yonkou Commanders but we can't tell Beckmann's level.
The three commander thing was always fabled. There is nothing to stop from Who's Who being a commander level fighter (unless Yamato is one).