Yata
1) Well most likely you are right...
2) Well that may be true... but KKG and KKT as well Ying-Yang (bijuudama) and other attacks using Ying-Yang release could bypass it as it is more then singular attack... Yata was stated to chane properties of singular
attack, ONE ATTACK NOT MULTIPLE AT THE SAME TIME...
3) Well not... I can't agree with this point, it seems illogical simple, and until Kishi states me wrong or you can bring evidence of me being wrong then I still can't accept it as fact. The chakra is aplied to it until stated otherwise
4) Most likely true..., but then Could Yata consider Bansho Tenin as attack, If Nagato tried to pull only Yata Mirror from Itachi instead of attacking Yata itself. Bansho Tenin doesn't damage at all... so Yata should consider it as danger...
Same with Kamui absorbing Yata Mirror, same wtih Sealing scroll which could drawn Yata towards it... of course it couldn't be easy as pulling force would have to be enough to release grip of Itachi's Complete Sussano over Yata Mirror to release it.
Nowhere in Databook nor in the manga it is written that Yata is attached to it's wielder and serves him/her until his/her death... If no then it is possibility of taking it away.
Totsuka:
1) Well but it is not stated that you CAN'T ESCAPE FROM THIS DREAM LIKE WORD..., OF COURSE we will assume for now that you can simply as that but it will last as long as someone finally break of it and release yourself, same with Death repear seal. It was said that there is no escape from that but it looks like there is so it could be same with Totsuka... And again the chakra apply to Totsuka as well until stated otherwise.
2) Well here, I agree... Totsuka has no physcial form and didn't give physical/visible damage to anyone it pierces so it could debatable. However it was considered as varrant of Kusanagi Blade Orochimaru had and it couldn't pierce through four tails Kyuubi Naruto cloak v2.
3) Well you brought good points once again, but Nagato absorbing magical item could be senseless, pushing it away as well as it has NO PHYSCIAL FORM. However I didn't mean getting rid of this weapon and I agree and said before The blade itself is indestructible but there is possibility to break sealing spell of The blade by another powerfull sealing master... maybe way to stop sealing or undone it. IN the end SOMEONE HAS TO ENCHANCE THIS BLADE WITH SEALING TEACHNIQUE AS manga and databook doesn't states that this weapons was created with sealing technique....
4) Well same as wit Yata, The blade itself is not attached to Sussano by blood connection or something, so Ofc it can be taken away but this could be very hard to do that....
Thanks for brining good points and nice debate
Even although you proved me wrong in some points, still with some points I can't agree and there is lack of evidence to them...