So who stated having yang = definitly having mokuton?. Hagoromo possessed Yin and Yang, hence he had the rinnegan. He would not have accquired the rinnegan without yin and yang combo. Mokuton as I said many times before is simply a mutation that occured in Hashirama's dna.
Here is the misconception you are in. Kaguya =/= juubi when she at the fruit. However, Kaguya merged her will into the juubi somehow. We do not how.. but she was able to do it. How can you be everybit of something just by eating part of it? you cannot. However, she merged herself into the shinju, hence the tsukuyomi came into play. Note that Rikudou only entitled 2 KKGs to her, the sharingan and the byakugan. Some people are even saying she possessed the rinnegan.. but she did not.
Well we have no clue on what her powers were before.. and no clue how her powers are now compared to before.. there has been no comparison. The revival was because of black zetsu. Not because of absorbing the full tree. However this is irrelevant to the topic at hand. her powers and so on. Rikudou didn't have the powers of Kaguya, despite becoming the jinchuriki of Kaguya/juubi.
Since i myself have no firm answer regarding kaguya and the tree, i won't bother arguing further on this.
Lets talk then. What is life force in Naruto? Chakra. Do you understand that? Uzumaki are nothing more than a senju clan. Senju blood lineage was divided into many factions, until Hashirama reunited most of them under him. However, Uzumaki were already established on an island.. hence the whole konoha and uzumaki treaty thing.
Senju possess more chakra aka life force than Uzumaki. I acknowledge that there are different types of Senju (it was called a diverse clan by kishimoto). But i am referring to Hashirama and Tobirama. And also,
You must be registered for see links
Come on dude this is a long established fact you are questioning now. Senju like Hashirama and Tobirama have strong life force.
So wouldn't this be me cleaning up the mess
No reread what i stated. I said Hashirama had already possessed the power, however he need to train hard to unlock it. Similar to Ashura. Possessing the power = reference to what i stated that it was a mutation in his blood.
^^^^^^^^ Clearly you didn't look at this.
Kaguya was never stated to USE wood style. Shinju itself is wood.

.
Also, you stated that manipulating something is already wood = samething as Hashirama.... where did you get that from?
Sure you realize that Hashirama creates new wood.. not make from existing one (which he can also do).