Yes, YC3 Cracker manhandled base Luffy with only one biscuit soldier.
Yes, Feel free to prove BM did more damage.
No, They'd destroy him in five minutes.
Marco molests Katakuri. I am not even joking like I usually do on Katakuri topics. MF war lasted 3 hours. Marco was fighting top tiers and yet he didn't come close to getting exhausted. Lesser characters like Ace or Jack can continue to fight for days. Time isn't a factor here. It's the rate at which Marco needed to use regeneration. He's constantly being hit by King, Queen, and Kings flying squad with attacks from King being likely comprised of a high-level COA.
Marco is faster than Katakuri. Kuri can't even tag a heavily injured base Luffy with Mogura, He must have the luck of a devil to be able to tag Marco lmao. Katakuri can't put Luffy down with ten hours' worth of free hits. He will never be able to inflict the same amount of damage as two Zoans worth more than him with his shit-tier attacks. You must be joking when you said Karakuri is more relevant than Marco. Have you seen anyone outside BM pirates even mention Katakuri's name after WCI? lmao