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No, there's a huge scaling chain it's not just "Baki presumably", and please, use commas, is really hard to understand you if you don't use them.
Doppo easily overpowering and totally humilliating Dorian who easily defeated Katsumi, who was comparable to Hanayama, this doesn't has any base, you just said it without a single argument.
It's not just humilliating, is the fact that he killed him with a casual punch and he being exhaust doesn't change that, also, how fast Yujiro's power grow?, i mean he just pass from thinking Amanai is strong and even let him slap his face to think he's trash and kill him with a casual strike, he just became several times stronger in a few minutes or what?, then why is Baki able to have a fight with him if his power increase so much? You are not saying anything, i just told you that Yujiro saying that someone is strong doesn't prove anything and you didn't gave me a true counterargument, just pure headcannon and speculation with not even arguments at all.