Word vomit.
Shanks is a swordman with a beloved blade who is the rival and main duel for the current wss.
That alone debunks whatever you wrote.
Everytime we interact (luckily for my brain, we don't interact much), I compile factual information from this story while you become an ostrich digging its head in the sand and resort to "blah, blah, blah"; such as your "Word vomit" here, even though it isn't a word vomit but, again, a compilation of canonical facts from One Piece, each of one I can support with a chapter reference.
It's okay, buddy. I know people like you, mentally handicapped: it's a common trait among them to have trouble assessing grays and considering nuanced perspectives. Which is why you believe I believe Shanks isn't a swordsman, probably because you also believe I have a Shanks > Mihawk agenda driving my contributions to this topic, even though I post stuff like this:
It's not about denying the chance of Mihawk being stronger than Shanks, which he can very well be
Or like this:
Nothing of this prevents Mihawk from being the World's Strongest Swordsman apart from a dai-kengou, though.
Guess why? Because if Oda came and said tomorrow that Mihawk is totally stronger than Shanks I'd be fine with it since it's a scenario I take into consideration and potential acceptance. But while I have no problem considering different possibilities, you simply stick to one and will attack like a dog anybody who confronts your cult-like beliefs.
Again, I compilate every information given in this manga about swordsmanship and build opinions based on it. Your kind, on the contrary, choose to ignore it, normally making up foolish accusations like "You don't think Shanks is a swordsman" (I don't
necessarily reject a scenario where Oda ultimately nuances swordsmanship regarding many characters, Shanks include, while at the same time I don't reject either that Shanks is as much of a swordsman as Mihawk and weaker than him) instead of actually building significant reflections on the topic.
The reason, as I explained, is that those like you actually dislike One Piece's swordsmanship and have zero interest in fully understanding it, and therefore dismiss 90% of what makes swordsmanship in this universe.
A reality that, by the way, makes your life even more wasteful that it must already be since you spend who knows how many hours a day posting in a forum about a topic you won't even embrace as you should; which is why, everytime I compilate for you the, I repeat, factual nuances, informations, etc. we've been given about One Piece's swordsmanship since day one, you will dismiss it all by calling it "word vomit".
Word vomit that can be directly traced to explicit statements in canonical chapters, though. But your kind are too afraid to even consider nuances because that makes it harder to take strong positions about things, which I bet you have a hard time with even in your real life. Good luck with that, I guess.