the thing with obito was that.. he realized that the world is filled with miseries when he met madara and that there is more regret and turmoil to be found than happiness.. where u loose things more easily than you scramble and scarcely gain.. just like madara said.. where there is always light there will also be shadows to found.. those shadows being futility that is inflicted by Victor's over the defeated.. and where is love there is hatred for deprived..
Its just that obito was born in a fundamentally torn society.. a very transient reality yet very painful...
the only solution to this miserable life.. is destruction and reconstruction of the very philosophy of humanity... on the brink of extinction they will sympathize with eachother...but gradually hatred shall be born again.. and i shall be reborn to set things right again. - pain
The only solution to this awful existence is.. a world only of victor's where futility is a myth and peace is reality... and the cost for such a world is reality itself- Madara
A world where you loose nothing in exchange for meager happiness... where you have a well laid purpose...and a never ending dream, the only reality that will solely exist - - Obito