He said "not much", not "nothing". And that's how it should be since we are entering the end game of the story and are fighting against two of the Yonko right now. It would be worrysome if the crew couldn't deal with most enemies after this. Aside from the Admirals and Blackbeard, there really shouldn't be many people left that pose a threat to the crew as a whole.
Also, can you maybe post an example of any major enemy getting "stomped" by any of the Strawhats so far? And no, getting a hit in or managing to hurt an enemy is not the same as stomping them, or else the Strawhats stomped every single enemy they ever fought.
What are you talkin about ? Kaido and Big Mom aren't winning right now. They are losing actually. Kaido has lost 4 of his numbers, Ulti and Pay, Drake, his gifters and waiters. Luffys side has lost what exactly ? Chopper instead of being out for the rest of the fight because of the 30 minute usage of MP, he just turns into a baby for gags. Zoro will now get magically healed. Hyogoro instead of dying, he survives. The scabbards fiasco
No matter what the Yonko crew does, straw hats just outdo them which is bollocks. Plain and simple.
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Yes, because Kaidou owning the SH's continously and being an insurmountable obstacle in the SH's path so we have to do a timeskip 2.0 OR Kaidou defeating the one that is the protaganist in the series on a path to become the pirate king and thereby ending the series alltogether without Luffy or any of the SH's for that matter fullfilling their dreams is what? Good writing?
Granted it would be quite unexpected, but I wouldn't call it good.
Find a way to make this win believable and not an asspull ? the only thing oda had to do, was have Big Mom betray Kaido and even the odds. Instead he chose to have Tama wreck Kaido's forces.