Well tashigi hasn't beat Zoro has she.
Also your the one who thinks Zoro got Enma, one of the only weapons to ever scar Kaido, Connected with the Wano citizens on personal level not seen from him since skypiea, declared he was going to behead Kaido, and is in the land of samurai and his ancestors so he could fight WhosWho. Now tell me who is the delusional one.
Also ryuma and Zoro are so close it's not even funny
The strawhats needs to grow you really think the PKs crew's number 4 should be struggling with Holdem
Because Zoro is literally a character template off of Ryuuma, who is another character from oda's pervious series. Mangaka do it all the time, Mashima literally recycles EVERY character model from Rave Master to Fairy Tail, and Fairy Tail to his new series.
Oda was refitting an old character design from a less popular series to one for a more popular series. Also in the one piece verse, zoro is more than likely directly related by blood to ryuuma. In the end, ryuuma is just a reference and backstory for one of zoro's swords, he hasn't done anything in the canon but defeat a dragon, so there isn't something for zoro to replicate. Meanwhile he's clearly a strong comparison to rayleigh.
Also regarding enma, Oden cut Kaidou, the swords were just his tools. Them cutting kaidou and being oden's previous weapons are backstory to give zoro's new sword a cool backstory. Of course he's going to land one hit on kaidou before being one hit, probably out of kaidou being already weakened, it being a blindside, or kaidou suffering from a lapse in defense due to having ptsd from seeing enma again (Cuz oden cut him with it)
Honestly if you think zoro is going to be the one defeat kaidou, you're just delusional.
I mean Luffy's not pirate king yet, and won't be for like 4 arcs. Luffy isn't yonkou level yet, he was recently one hit by a yonkou in base, so like, why would his crew being pirate king crew leveled already? Also if Yamato joined the crew, Franky would be the 5th strongest. Do we even know who the 5th strongest crewmate of Rogers' was?
Luffy isn't yonkou level yet, his crew isn't yonkou leveled yet either. WE already saw this clear as day when kaidou's 8th and 9th strongest crew mates beat luffy's 8th and 9th strongest crewmates in like 20 seconds.