a) I didn't say "Danzou see", I said "Ao" saw Shisui chakra in Danzou's eyes.
Obvious type-o is obvious, prob shouldnt have wasted time stating the above.
b) That doesn't convince me at all. My statement about "grafting" and properties inheritance convince me more. Telling that this was a side-effect sounds like an ass-pull (no offense).
Sigh, explain to me how grafting and property inheritance works in this sitaution. Do not link me somewhere else, type and explain it to me in full detail so I can understand.
This one has started to convince me, the only plothole I see here is that Tobirama stated that the eye had to be connected to the nervous/chakra system of an Uchiha, and Kakashi's Sharingan was not powered with Uchiha chakra in the moment of awakening. Obito was not even near enough to project chakra and be connected (that's what you showed me when he was in the forest)... so the only logic explanation I have for this is that Tobirama didn't know the Uchiha enough, and "maybe" the vision shared by the eyes was related to the innate ability of the rinnegan to share vision range (an uncompleted version), and ONLY when Obito was in the place the chakra network connected through air somehow and this awakened the MS when Obito was there.
In other words, your unrefutable argument may be right, but it that's the case, it's another asspull since it contradicts what was stated in the manga.
I am going to try to make this very simple:
In the situation with Obito vs Kakashi the question we are left with is whether or not kakashi activated the eye himself or whether Obito activated it in proxy. Now the later seems the most evident because:
1) We know Obito was there at Rins Death
2) We know that Obito his Sharingan which was in kakashi's possession were connected at the time.
3) We have never seen anyone other than an Uchiha awaken higher levels of the Sharingan.
Now there is a very important concept known as Occams Razor, basically what it means is that when you have 2 competing theories the simpler one, or the one that makes the least amount of assumptions, is the more likely theory.
For instance, if you are debating how a person got here. If one person says he drove, and another says he is really a spy and flew here after coming from the hospital where he was nursing his spy injuries. Then the first is the more likely theory as it requires less assumptions.
Now in regards to the 1, 2 and 3 I typed up earlier. Our theories are exactly the same more or less, the only difference is that yours has an added assumption, which is that people who are not born Uchiha can infact awaken higher levels of the Sharingan. And thus by Occams Razor your is less likely.
Now with that said a topic you seem to be caught up on the what Tobirama says, which is weird to me because I have read, and re-read what he says and you are coming to a conclusion that does not reflect his words. In regards to the Sharingan he says this:
"When Uchiha suffer after experiencing the loss of a loved one or despair, a special chakra sprouts inside their brains, which affects the optic nerve and produces the change their eyes... The deeper their darkness becomes, the more powerful the eyes get"
Now based on this we know 2 things, the Sharnigans are a reflection of the Chakra within the brains of the Uchiha, which is powered by despair. The deeper the despair becomes, [the more powerful the chakra becomes], and thus the more powerful their eyes become. But the common factor is always the Special chakra found within the Uchiha's brain.
Now for someone who is not an Uchiha to also awaken a higher level of the Sharingan with their darkness, they too must have special chakra within their brains. But we know they do not because only Uchiha have that... I really truly want to understand your argument? Am I missing something here or am I just crazy? What is it your are arguing?