For the upteenth time in this thread, I'll break down my argument for your kind of mental capacity.
There are those making the argument that because Usopp disrespected Luffy's authority as captain, he can't be vice captain. I pointed out that Zoro has done the same thing, therefore he shouldn't be vice captain either. Zoro himself stated that disrespecting Luffy's authority as the captain is something that should receive ZERO tolerance from a crewmember, showing he has a lot of disdain for it, and yet he did the same thing himself. ZORO'S WORDS, not mine, that disrespecting the captain's authority is an absolute 100% no-no, but he did it anyways.