There's nothing to debunk. You went back on your previous word and want me to address the rest of your post that's it. Well as I said before, if you change the basic logic and repost it in a civil manner I might entertain it.
Bold. Since when did I go back on my word? Lol, Indra + Ashura equal to Hagoromo's Six Paths Chakra which is made up of Yin-Yang, but not his overall power (Rinnegan and Six Paths Sage Mode is both full halves of his power, not the actual Six Paths chakra, which is what I was talking about in the first place).
In another word, you can't explain it. And no, madara is yin and yang. And he doesn't have neither of them seal. Since we talking about what comes with the seal, you shouldn't have brought the staff up to begin with
Yes, indeed I can, and also, it was already answered earlier by Sam Trent Reznor.
Half of Obito's body was made from White Zetsu which was cultivated by using Hashirama's cells which in turn had Ashura Chakra. That's why Obito is Yang.
Madara was Indra's Transmigrant, which means he is predominately Yin, even though he has both powers, because he is predominately Yin, his Staff is Yin.
Anyway, even if you wish to ignore the Staff shapes, you can't ignore that Hagoromo had a TSB Staff during his battle with Ten Tails (Kaguya). TSB can only be formed when one has all chakra natures (Water, Fire, Earth, Lightning, Wind, Yin and Yang, formed into Yin-Yang release).
Your argument is moot, Hagoromo has a Dojutsu, which is a Yin power, thus, with all of this alarming evidence, he was always Yin-Yang. Hamura is also both considering he had TSB of his own as well and probably Shikotsumyaku which equals to a Yang power anyway, he even has a Six Paths Senjutsu Mode of his own (not to be confused with Naruto's own).
Bold. Hmm? Seals? None but Hagoromo has the seals, I don't know what you're talking about, especially since you told me earlier that Hagoromo was only Yang during Ten Tails fight alongside Hamura. I've proven that your wrong about that theory.
Concede.