well most ppl on this site would disagree with that but anyways here are my thoughts on this issue
(i'm gonna copy/paste by older post so some info might be outdated)
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1st off, by now it is clear that Obito is sincere to his goal and if he gets to complete the plan then he will make everyone's wishes come true......(i don't really trust Madara on this, he might just make himself king or something lolz)
Now, from Obito's prespective he wants to achieve heaven(Dream world) and take everyone to heaven with him.
a world of winners and all, where everyone will be happy.....
Ok, here naruto and others disagreed with him because they said that it will be a fake happiness and not reality cuz true happiness is meaningful only if achieved in real world.
Now, i don't see this logic(maybe i'm wrong) but..how do you define reality?
as Itachi said,'Reality is only what you believe to be true and real'.....you can also say that it's a feeling.
like if you are in a dream....you feel it as the reality untill you wake up, only then you can differentiate between dream and reality, but what if you never wake up?
yes, then that dream will be your reality....e.g that is what was shown in Matrix, if Anderson never knew about it he would just have been living happily in what he considers reality.
i think you get my point, so how can Naruto and the others say it won't be real if they never know and the jutsu ends only in their death. they would just be living happily without knowing that they are in a dream cuz they'll never wake up.
Now, you may say that this happiness won't be real but happiness is only a feeling and has nothing to do with reality.
if they can get that feeling in the dream world for the rest of their lives then what's the problem??
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Obito is right, no alliance can last forever, will the world constantly depend on naruto to make things right? what will happen when he is gone.
Attaining peace is a collective effort, no one person can ever maintain it. And Naruto knows this. But he still believes that there will always be good to rise against evil, which is the eternal Cycle.
Obito wanted to break this cycle but Naruto seemingly supports it.
How many more people needs to suffer/sacrifice before a new hero can rise to take on the next tyrant? If only people could understand Obito's mind set and could see him past the "rin" crap, they would respect this character.
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well, there u have it.