Re: Clarification please on Izanami
Izanami simply must not require senju DNA. I mean there's a reason he used a tech similar to Izanagi but
not Izanagi, right?
NOPE tobi said it takes uchiha and senju but as of now we don't know of tobi's lineage/ bloodline but danzo was neither so he needed both; itachi (i'm guessing madara too) are true heirs of the uchiha clan because of their full blood so they don't need senju dna to use izanami although it would help it's not necessary. It's like shisui's KA you only need sharingan (uchiha dna) but senju dna will help it recover in time for constant use. Trust me the uchihas probably discovered it when in battle they lost an eye for casting genjutsu on themselves not by senju dna if they could even get a hold of it (until madara vs 1st) xd
Good theory, but remember that an uchiha that has senju DNA is simply getting closer to becoming the sage. So Izanagi is not Uchiha related, but SO6P related. Those are, of course, two drastically different things.
Keep in mind that the Uchiha have spawned techs
separate from what the Sage had (ie MS techs). Therefore they do not simply share eachother's techs just because they are distantly related.
I still think that your theory is possible, but I think its more likely that Izanami simply does not require senju DNA for some reason.