Whether it's a title or a name is Irrelevant...
Whoever that person was that was called joyboy was said to have his will inherrited by someone in this specific time. rogers crew found that out.
This was OBVIOUSLY luffy...and like I said this has been known for YEARS.
not being able to hear someones voice through COO is not the same as dying otherwise everyone on skypeia would still be dead. including most strawhats
Luffy is not dead and never died.
and I seriously doubt Joyboy is possesing luffy lol
no it's not safe to ASSUME anything that's just you're zorofanboy headcannon lol. there was NO indication(black streaks) that Zoro was using advCOC coating in his asura attack vs kaido. Kaido only said he awakened basic COC at that time.
Is not obviously Luffy. It was Roger then Shanks then Luffy. The will is passed by Strawhat or at least seems to be like that. Luffy is the one who is in time for JoyBoy to come, both Roger and Shanks were too early.
Not being able to hear someone voice with CoO is not the same of that person being dead. I agree. But Momonsuke has VOICE OF ALL THINGS and talks to Luffy telepathically, this is different. Way deeper. And Kaido assure that Luffy was dead. Different from last time when he didn't know for sure because Luffy falled from Onigashima to the water.
You have one argument against Asura ACoC and I have one in favor of it. You can argue that ACoC is usually portrayed with black lightning and I will say that in the past we didn't had that like Kaido vs Big Mom spky split.