But it's his style. We won't begin a start and say that "Bee don't use your 7swords to fight Itachi, abandon your original style so that Itachi could have the upper hand". Bee based his style on that. You say he has 7swords, but you forget to mention he trained hard to be able to use them so perfectly. Having 7swords means nothing if you cannot manipulate them. It's not easy to use 7swords at the same time. That's what you forget. Give 7swords to a 1sword specialist, and you will see it's much more easier for him to fight with 1sword than with 7. So that was Bees style. He was saying Itachi was faster than Bee in base mode. And if he thinks that, that means Bee with his 7swords is slower than Itachi? No way. Be a fanboy has a limit.
Exactly. He trained to master them. But the mastery of using 7 swords is not determined by his
speed. It's determined by his skill as a swordsman.
The fact that it's Bee's style changes nothing in this scenario. The argument is that Itachi retreated because fighting a master swordsman who can use 7 swords is futile with
only a kunai. No one jumps into a fight knowing they're at a disadvantage. It's like Tenten agreeing to a taijutsu battle with Lee, or Neji agreeing to a long distance battle with Sai. It's not a matter of speed or strength or anything other stat. It's a matter of common sense not to partake in a challenge that you know you aren't suited for.
You initially said Itachi fell back because he can't match Bee's speed. My point is that's not why he fell back. Even if Itachi was as fast as Bee, he's not going to engage someone in
their area of expertise.
Itachi is not a swordsman. Bee defeating people with his 7 sword-style does not mean he's
faster. It's means he's a
better swordsman.
You keep referring to Bee's 7 sword-style as taijutsu as if Itachi could fight against it with hand-to-hand combat. That's not the case. The minute Bee busts out his swords he is shifting to
kenjutsu. Itachi is not a kenjutsu specialist like Bee. Sasuke actually was a swordsman and look where that got him. Again, it's not about sheer speed. In this scenario it's about swordsmanship vs swordsmanship.