No you don't understand how One Piece works.
Hybrid Ulti is probably stronger than Vergo, Luffy needed G4 for her.
Usopp survived Hybrid Ulti, for the same reason why he survived Caesar Clown.
-You; ''if Sanji was weakened why Usopp is alive?''
Do you even understand how One Piece works?
See how big her hands are
That's why he needed to go G4 because he couldn't use his arms
Monet produces a similar reaction from Luffy but with her tiny bird toes and in her base form
Ulti uses her strongest form
Exerts more leverage because of bigger hands, same way a bigger hand helps out with leverage in anything strength related like armwesrtling, Monet has tiny toes and restrains Luffy just from the shoulders, so Monet's feat is waaay more impressive - and Monet is in her BASE FORM while Ulti is in her STRONGEST FORM
Luffy does not need G4 against Ulti, only to free himself when he is in base form which he does by blowing air into his neck (same way he freed himself from Cracker who held him down with his shield)
Usopp was fucking alive and doing well
You understand Sanji's absoluely hardest part of the leg bone was broken so you need to argue is less than Usopp level durable for your argument to make sense
It's not my problem if you can't understand Oda's humour he makes gag scenes all the time that doesn't make sense, like Sanji catching up to the dragon in the same arc, that's not real , that's a fucking gag scene