Uh you do know that this is a topic about soul right?
What are you even talking about? I'm telling you that you can't equate HR to CT or even innate domain for that matter. Innate domain isn't merely physical body information. Quite different.
Fun fact: THE soul does have CT. Hence why Sukuna's CT can manifest in a vessel's body despite he himself being just a soul.
Or even how Yuta can use Gojo's CT despite his brain not being there.
No matter how you slice it or dice it - Body = Soul in JJK. It's why Yaga is capable of getting soul information from physical information and vice versa. Or how Yaga can revive Toji who is dead and has passed on just from his physical information alone.
One of Yuji's traits and relation to Sukuna, especially his ability to have his CT also comes from being the son of Sukuna's twin's soul. For him to gain traits related to Sukuna could only be possible through if Jin carried the same body information that he had in his previous life.
Moving on.
That's kinda irrelevant really. Innate domain is where your soul resides in. Precisely this is where Sukuna is as a soul and is also where Yuji went after he died.
Megumi is also in that space too as a soul.
Rest of the stuff you said doesn't really seem to address what I'm saying so I'll ignore that.
By the way. Keep this in the mind since you seem so keen on trying to ignore it - Gojo looked at Kenny and saw Geto's soul. Had the same CE, etc. Then Gojo tries to rouse geto awake, this surprises Kenjaku and makes him talk about how the host's memories can even pop in his head when their brain is replaced - or how this situation just happened.
Sukuna, who sees the contours of souls, really thought he was Gojo (Chapter 261), just like what happened with Gojo seeing Kenjaku in Shibuya, and only later realized that it was Yuta behind it because of the stitches on his forehead.
Yes it is. We've seen multiple examples already. Pretending otherwise is just being disingenuous. Mai and Maki case remember? Where do you think that shore comes from
I guarantee you the afterlife or the like does not have that ability whatsoever. But we do know innate domains do. Just like how Sukuna's appearance changed even due to residing in a vessel's body when he's inside the innate domain. Blud even has a kimono and all that bruh
Then we have the Jogo example. In that innate domain of his Sukuna suddenly pops in.
We see this happen AGAIN. With Nobara particularly where her mindscape drifts through different stuff and memories and conjuring up shi about the others being there.
Then we have the Kashimo situation. He was also in the same predicament - Dude went from young to old to young. Takaba also went through a similar stuff even. Do you even realise as to how innate domains function as a mindscape dude? Because this is quite clearly a mindscape that gojo was in.
As for your counter point - Haibara being there doesn't contradict anything. We know that souls can hop in your innate domain lol. The scenes I mentioned above quite qualify as such even. Mf maki does this shit even the second time after she gains enlightenment
. Where she is talking to Mai.
Infact you should be asking yourself why Gojo's in his younger self in the airport scene. Quite precisely from his HI arc self. In that arc, after awakening, gojo was honing his DE at that time. Which would be one of the reasons as to why he looked like that. Infact his innate mind reflecting itself for him to look like that makes more sense if you look at the raws.
Gojo used 俺 (ore/I) in the beginning of ch236 like he did in his student days. After growing up, he would stop using that and use 僕 (boku/I)