Not only bones broken Zoro did more damage to Kaido than Luffy, we now have Yamato who lasted much longer in 1 vs 1. What's next? Momo outpeform him too by dealing heavily damage to Kaido by giving him Oden PTSD?
I'm the first to agree Luffy soloing a 100% healthy Kaido would be stupid, but this is getting pathetic for the guy who keeps yapping about pirate king. Maybe he'll get his turn when Kaido is a 5% hp.
Well, he is already impressive if you consider Luffy for what he is instead of expecting him to be like Zoro.
His fight vs Kaido shows us exactly what Luffy is, as Mihawk said, a man with the power to make others want to help him.
The issue in Wano is that all this help is disguised as already existing hostility towards Kaido so looks like Luffy did nothing.
If we measure Luffy, or almost anyone else, by Zoro's standards, he will never be impressive.
Despite people's inability to help themselves, Zoro isnt meant to be used as a benchmark because he makes others look bad.
Wearing Kaido down in a team battle is good enough for Luffy's achievement and in the future, he will look better when he gets a bit better match-ups.
If Momonosuke starts dealing serious damage to Kaido, it will make Luffy look bad, lol.
We will see what Zoro's disciple can do but I am not expecting anything serious, if he can replicate Scabbards it's awesome.
Yeah, when Kaido is at 5% HP left, Luffy will get some spotlight to "claim the victory". But then, Kaido raises up once again.