Its a very short theory and with only manga facts in the first part. Kinkaku and Ginkaku are not Uzumaki. They are directly related to the SO6P's family- Hagoromo clan.
Here is an interesting thing I absolutely forgot:
That man was from the Hagoromo clan. And, they were at one point allied with the Uchiha clan.
A long time ago, IKSOKRIPS made a theory being that the Hagoromo clan was the founder of the Hidden Cloud. But, he stated that the Hagoromo clan would have nothing to do with the story later on. A mistake that everyone made and basically forgot.
And here is basically why I as well think they founded Kumogakure. Their outfits look like the Hidden cloud uniform.
If you compare with the picture above, you'll see the similarities also.
This also explains why they had the Sage's tools and also why A said they are related to SO6P.
Second Part:
We know that the Uchiha and Senju later formed an alliance. Probably the Hagoromo clan defected from the Uchiha because of that and decided to make a strong rival village- Kumogakure.
The Hyuuga joined Konoha and became a powerful force. I assume that many older members of the Hagoromo clan knew about Kaguya having the sharingan and byakugan or atleast theorized. Therefore, they wanted to get a hyuuga bloodline shinobi from Konoha and pair them with the Hagoromo clan to make a neo-senju/uchiha bloodline.
As time went on, the real reason was forgotten and the next generation of the Hidden Cloud kept on the tradition of stealing/abducting KKG shinobi/tools as the secretive elders, now deceases with their secrets, had commanded them to do so for such a long time.
Here is an interesting thing I absolutely forgot:
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That man was from the Hagoromo clan. And, they were at one point allied with the Uchiha clan.
You must be registered for see images
A long time ago, IKSOKRIPS made a theory being that the Hagoromo clan was the founder of the Hidden Cloud. But, he stated that the Hagoromo clan would have nothing to do with the story later on. A mistake that everyone made and basically forgot.
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And here is basically why I as well think they founded Kumogakure. Their outfits look like the Hidden cloud uniform.
You must be registered for see images
This also explains why they had the Sage's tools and also why A said they are related to SO6P.
Second Part:
We know that the Uchiha and Senju later formed an alliance. Probably the Hagoromo clan defected from the Uchiha because of that and decided to make a strong rival village- Kumogakure.
The Hyuuga joined Konoha and became a powerful force. I assume that many older members of the Hagoromo clan knew about Kaguya having the sharingan and byakugan or atleast theorized. Therefore, they wanted to get a hyuuga bloodline shinobi from Konoha and pair them with the Hagoromo clan to make a neo-senju/uchiha bloodline.
As time went on, the real reason was forgotten and the next generation of the Hidden Cloud kept on the tradition of stealing/abducting KKG shinobi/tools as the secretive elders, now deceases with their secrets, had commanded them to do so for such a long time.