At the end of the day, the arguments for Sarada are:
Genjutsu + Chidori = Win
The arguments for Yamato are:
Natural durability + Ice Armor = Yamato breaks out of Genjutsu due to extreme pain from Chidori -> Yamato blitzes with Thunder Bagua = Win
The Sharingan doesn't allow Sarada to keep up with Yamato's speed since he has 2 blitz level speed buffs through both hybrid transformation plus Thunder Bagua. Sarada has pretty consistently struggled against characters faster than her despite the Sharingan, and she almost never uses Genjutsu against 99% of the enemies she's ever fought. She used it against Konohamaru in the Genin exam AFTEr getting bodied by him, she didn't use it against Buntan until after an extended fight, and she never used it against Deepa, Boro, the Fabrications, Ao, Chocho, or anyone else, even when she was in a crisis or about to die.
Saying "but they're resistant to genjutsu!" is a bad excuse cuz most of them are not, and saying "but Chidori gives a speed boost so she can keep up!" is also a bad argument cuz that's the speed for 1 attack. In order to get the speed again she needs to, well, use the attack again, which is risky, since Sarada needs prep/windup time and stamina to do, while Thunder Bagua does not.