And you do realize Garp hasnt beaten any swordsman on panel that we can see how he is supposed to do that?
Zoro is worst possible match-up for Luffy, ridiculously easy for Zoro.
Cracker used sword only 3 times, once when he almost cut his hand off, once when he aimed for his head and in the last attack, the rest of the fight was against biscuits. What a coincidence, just what benefits Luffy. You dont need to remind me anything, I know it perfectly well.
It wasnt spinning slash, it was spinning stab, big difference. If he went for a slash instead of a stab he would have never been shot away. He wasnt able to stab tankman, again big difference. Katakuri's spear is stabbing, not cutting, again, there is a big difference.
Luffy dodged and dodged until Katakuri threw away the spear because Luffy couldnt do anything except dodging which proves my point.
It is not something I made up, it is a manga fact.