Another example of someone who can't comprehend a manga.
Let's take a look at the very first example. Becoming Pirate King is harder path than beating him. Yes, because Gregyou cannot become PK by yourself. Roger begged WB for Oden. If it wasn't for Oden, Roger would have never became the Pirate King. You can't become PK by just being strong. Also, being PK doesn't mean you're the strongest either.
Other explain. The manga tells us Mihawk is the WSS and more skilled swordsman than Shanks.
The manga didn't need to tell us Mihawk is stronger than Shanks because the title does that for him. That's the purpose to having the title. Somehow that's too hard for some fans to comprehend.
Mihawk haters and their mental gymnastics.
Oda: Mihawk is WSS
Mihawk haters: Oda is wrong and he doesn't know he's talking about. Mihawk title is fake. If it was true Oda would name all the characters he beat to prove he's the strongest even though the manga is not about him becoming the WSS.
Oda: WB is the WSM and Kaido is the WSC.
Mihawk haters: That is true and Oda is correct. It's irrelevant if we can't name the people they beat for their title. It doesn't matter if neither one of them fought Mihawk to prove they were stronger for their title. All that matters is that Oda tells us it's true..
Reasonable One Piece fan: