Okay zoro and mihawk are rivals not antagonistic so they can’t fight
It doesn’t matter that luffy wants to fight shanks or zoro mihawk they aren’t bad guys so they should be killed off to hype up a different character
Bad analogy.
Mihawk is in CG. Also, Mihawk doesn't share brotherhood with zoro. They have duel reserved.
Nothing as sort of with shanks and RhP.
Then, mihawk is individual and when you say SH vs RHP then it's about the crew as well. Does RHP shares any antagonistic rivalry? No
And, that side character you mentioned is that person whom your fav wants to stop.
I know you are shanks fan but don't turn yourself blind to what's in front of you