Good grief, King did not show anything that makes him superior to Marco and Kata. You are just gassing him up because he was Zoro's opponent.
You just need to accept that the WG view Kid and Law as a bigger threat than Zoro, which they are seeing as they defeated Big Mom, who has sat on her throne unchallenged for decades.
Other than the fact King put Marco unconscious, on his ass, and unable to do anything to him. Don't confuss hax DF with strength. His DF let's him take on opponents without much worry until he starts to run out of energy.
King was beating Zoro in battle until Zoro mastered enma and obtained ACoC.
Katakuri lost to WCI Luffy, who was one shot by Kaido. Kaido was best by Zoro in 1v1 battle.
Do you believe Kid and Law are a equal threat to Luffy who has a strong crew, grand fleet, more allies and the dangerous Nika DF the world government has chased for the passed 800 years? The elders didn't even mention Kid or Law. Thinking those 2 are a equal threat to Luffy is a joke.
I give Kid and Law props for beating BM but let's not act like the bombs didn't cause Big Mom the most damage and was the reason she was knocked unconscious.
Without the bombs they only injured and knocked her off the island. If you count that as a win then you must count King knocking Big Mom off her ship and into the water and Queen capturing her a win for them. Neither King or Queen are a bigger threat than Zoro.
Big Mom throne going unchallenged for decades doesn't mean much since Yonko don't go around challenging each other and nobody sets out to be a Yonko. They seek the PK title.
Either we have bad writing, knocking BM off the island is not as big of deal as you make it, or bounties no longer represent threat.