Page One was knocked out. how does that help your point.
Hyogoro was not hit with a punch and he used barrier haki.
Queen was stunned by the first hit which proves my point. Queen was knocked out in 2 hits by O-lin while Big Mom couldn't knock Kidd out with multiple attacks
Sanji can't mimic several layers of steel. Therefore his durability is automatically lower.
Big Mom: I do not remember the last time I took this much damage. *Big Mom proceeds to take a year from her life
You: Kidd didn't do any damage to Big Mom that matters
Armament haki is not what created IJ. Sanji doesn't even have hardening. Kidd also hasn't shown hardening. so they cannot be compared.
IJ was facilitated by a combination of exoskeleton durability and armament haki