Look at this logically.
Zoro extreme diffed King, and even after defeating King the WG still gave him a lower bounty than King, lol. Yeah he ain’t pushing Ryokugyu to mid diff. Let Zoro beat Yamato and then maybe we can discuss him pushing an Admiral to low diff.
Kid and Law don’t possess any forms of offensive Haki whatsoever so yeah, good luck beating a logia lol.
And no other fighters are relevant, especially since we’ve never seen Aramaki take any damage at all and thus have no idea if it’s possible for Pirate trash to actually hurt him.