After absorbing the Shinju, Madara claimed he had become immortal/undying. Juubito had the tree within him during a portion of his existence as a Juubi Jin. During that time was Juubito "immortal", or was Madara getting full of himself after absorbing the shinju and briefly speaking to Kaguya.
if Juubito is immortal then Sasuke's pathetic Kanseitai Susanoo can't defeat Juubito. U_U Only Solo Emperor Kakashi Kanseitai Susanoo can manage it due to the insanely powerful kamui shuriken
Just kidding. Don't crucify me.