people don't even understand what 'portrayal' means.
'portrayal' is how kishi is trying to portray who is stronger or the general power standings of characters in the manga. Sure, you can use madara's having the juubi as a 'portrayal argument' that he's above naruto who has less bijuu power, but that argument is nulled and void when that same madara w/ the rinnegan gets wrecked by a naruto in base. Same with the later madara, you can say madara is portrayed as being > Sasuke and naruto since he has both powers in his body at the same time, but that argument gets null and void when madara get steamrolled by the duo despite both holding back and just beginning to learn how to use their powers.
If we didn't see madara fight naruto and sasuke at all, and all we had were the information about their powerups, then sure, madara's probably portrayed as much stronger than either of them individually. However we see that when he's up against them, that's absolutely not the case, therefore in order for those powerup vs powerup portrayal arguments to work, you'd have to just ignore parts of the manga that you don't like.
Kaguya is portrayed to be on a completely different level than any version of madara. Naruto held his own against her 1 vs 1. Sasuke was basically stated to be = Juubi jin hagoromo and Naruto is that sasuke's equal.
Naruto and Sasuke by portrayal are at least on the level of this JJ Madara individually. Together they stomp.