So the argument here is that Yamato replaces Sanji since "there is no dynamic", but she won't replace Zoro because he's always going to be the second strongest because "right hand". Essentially making a self defeating argument, since you're admitting there is a dynamic in place that overrides anything Yamato may do that will always keep Zoro in his position, yet deny that same fact for Sanji who was placed as the other "Wing", which establishes him as the next in line after the right hand; the honorary "left hand".
The actual argument being made here is this " I like Yamato and think she's stronger than Sanji, so she's stronger than Sanji", if you people just said this straight up it would be far more respectable than these pathetic attempts you call arguments.