Those ninjutsu u copy , Susanoo, amatersu would be useless because it would absorb the attack or chakra. Even If they were to copy ones ninjutsu odds are it would be weak. Example kakashi copying rasengan - weak ; kakashi zanbuza- strong. What Uchiha have u seen copy Someones ninjutsu from part 2? Noone
Sharingan doesn't have any defense to chibaku tensei or shinra. Not everyone has the potential to get Susanoo. Ie: Kakashi, shisui, izuna, Tobi etc. I included Kakashis name because although he isn't An Uchiha he was able to get MS.
It's clear that all Rinnegan so far have powers of SPOP. Not all sharingan has the power to do amatersu or Susanoo etc. Rinnegan > Sharingan. There's a reason why it's the next step above Sharingan.
If Madara had EMS already why would he try to get Rinnegan ? He tried to decrypt the Uchiha tablet, try to get the power of the SO6P.
Sharingan abilities vary, not everyone can unlock MS let alone EMS
Those who do unlock EMS can go a step further to Rinnegan.
Rinnegan is two steps ahead from Sharingan.
Sharingan-->MS-->EMS-->Rinnegan
Sharingan users abilities vary, could be for the Better or worse. Rinnegan you come fully loaded.
Perfect Susanoo was compared to A bijuu. It took Hachibi's TBB, itachis Susanoo, and Naruto's rasenshuriken to destroy a chibaku. The meteor is a different story, it could be destroyed.
Nagato vs Itachi , Itachi would have lost because chibaku tensei. No defense to it without two others help. Rinnegan > Sharingan
Sasuke has Sharingan, Susanoo plus amatersu, he would have gotten demolished from Oonoki's dust tech.
Oonoki's dust tech had no effect to madara due to Rinnegan. Rinnegan can absorb chakra and replenish the user as it happens to Naruto and Bee fight against Nagato. Don't believe me go back to manga. Its like a samahada , it absorbed bees BM and reverted him back to normal.
What I'm implying is not only does it absorb chakra but it reverts it to it's own by even healing him.
Rinnegan > Sharingan .
Taijutsu would be useless. Shinra or chibaku let alone meteor and it's over. You got off topic there with the Taijutsu we're talking about just the eyes and it's effects.