@jamjamstyle:
Let's observe the second thing then, the second time Aokiji confronted WB he froze him entirely but later noted that vibrations weren't freezable or in other words couldn't be stopped by his ice element. Why would it sudden be stoppable when he raises his hands on exectution platform?
those are completely unrelated. the stopping of the attack was most likely haki, no other explanation. him freezing wb was just hat him freezing whitebeard. whitebeard beign a quake man used that to break the ice.
we have seen that if a person has haki doens't mean they all do the same things.
only people so far that have been shown to be able to punch a logia are Marco, Rayleigh, and Hancock. so as i was saying with those 3 admirals having no weapons and we have no proof that htey can hit logias then they are going to be in big trouble tryig to hurt ace. kizaru's lasers will just go through him, his kicks will just go through him. aikanu is fire vs. fire, pointelss. and aokiji is well ice vs fire, not good for him. and hell at best if he manages to sneak freeze him like wb, whats to say ace won't just melt it like wb broke his.
you can't say because they did that haki block that they can hit logias. hell we have seen so many different haki things.
1. prediction
2. negating fruits when hitting
3. hitting logias (may be same as 2)
4. negatting WB attack like they did
5. knock people unconscious
6. imbue weapons for more damage
7. imbued weapons hurt logias (this and 6 coudl be different. we say raliegh could hurt logia with his sword, but wb didn't. so don't mean that all the amazons with thie rhaki imbued weapons would hurt a logia. their arrows may just fly through as well. their weapons just may be imbued to do massive damage)
8. possibly harden body parts (such as boa's sisters hair)
9. possibly make resistant to element such as fire (other sister)
10. possibly make one's body bigger (urogue or maybe even sengokue)
and yes you can imbue your devil fruit attacks i remembered now of hancock and her kiss pistol. it hurt luffy. so kizaru if he can do that could, but we have no proof he can.