Thats a pretty good theory..
I was sitting here thinking of anything to slam it to the dust but no I couldn't find shit..
Hyuuga is the oldest eyes in the series
And Uzumaki were taught sealing techniques by the Sage so they were around before the Senju..as Senju is from So6P son..
You sir may be correct..
Uzumaki were around as the Sage was an adult so surely they were established already, meaning a large amount of them running around
Hyuuga is the oldest eyes in the series, so they were around
It might also explain why the Hyuuga have 2 branches, 1 being "Main" and the others "Slaves", the slave branch are probably the descendants of the Hyuuga who ran away and bred out of the clan..
Its already been said Hyuuga and Uchiha are connected in the past (so6p father/mother Hyuuga)
and Senju/Uzumaki are connected in the past(so6p mother/father)
It started with a Hyuuga and Uzumaki doing the hanky panky, out comes a god..God breeds with..someone? and out comes two demi-god clans..
So..Hyuuga, Senju, Uchiha and Uzumaki are all related to each other through the So6P..
However I don't think So6P had sharingan, he would of had to get EMS and we don't know if he had a sibling to take the eyes from..theres no way MS goes directly to Rinnegan, would go blind before then, also Uzumaki village was the whirlpool village, might have something to do with the rinnegans pattern, even tho its not whirly, the eldest son's was tho..
You good sir, get +rep for your solid theory