You want me to show you how many times character had white eyes and got 0 damages ? Just check King after zoro's shishisonson.
Where is the real translation buddy ?
Show me white eyes with zero damage.
When Zeus goes for a one shot and only takes down 15% of the health... does not mean it had no effect. The seraphim took damage.
When zoro strikes king and does 15% damage and king goes white eyes... it had an effect. There's allot of force behind these attacks.
Imagine a bus hitting a suit of armor. The suit of armor might hold up but all that force travels straight through. The backing of the suit is soft organs and blood.
Just like kaido going white eyed from kidds attacks and from huge boulders falling on him.
Look at tekkai. Sanji stomped jabra who used Iron body right before the attack. The iron body didn't break. Jabra still took damage.
Which is why sanji even comments on how jabra felt his attack. Afterwards jabra runs from sanjis kicks.
These attacks can hurt them. It's all about the method of attack and how effective it'll be. Physical blows are simply the least effective. Elemental or internal damage seem to be the most effective. Or sea stones, lasers, and soundwaves.
You know, it happens in life when you walk casually and then *BAM*, you go white eye'd and fried for no reason
