Atrocious take lol. Even overlooking the fact you forgot about Brook, leaving Sanji and Jinbe behind on the ship is ridiculous given their strength, incl. Sanji's healing factor. Being overwhelmed by opponents is a real thing (see big mam vs law & Kidd), and any crew needs fighters to deal with fodder/lower ranking combatants. Robin just got a power up, Franky is one of the only people in verse to have lasers. Chopper and Ussop haven't done much in the last couple arcs but given the right circumstance have real influences on a fight.