User blog comment:Kaido King of the Beasts/Chapter 890: I'd Do Anything For Cake (But I Won't Do That)/@comment-31429799-20171231141534/@comment-24850639-20180102195648

A) Most of the fleet is at a distance where they are unable to do anything but fire cannonballs. Unless they can fly, or have some means for moving faster on the sea like Perospero, the individual abilities of the Charlotte Family members in pursuit of the Straw Hats currently mean nothing since they can't close the distance.

2a) Most of said cannonballs are ineffective due to the wackiness currently going on with Big Mom's powers

3a) The safe distance that they Straw Hats have established is due to the meddling of Charlotte Praline, who prevented the sea slugs from giving away the Straw Hats position. This is further evidenced by the distance that Brook and Carrot had to travel over the sea in order to make contact with Daifuku's fleet.

B) Big Mom is currently the main pursuer of the Straw Hats, and thus the rest of the Big Mom Pirates are not going to do anything that gets in her way. The unpredictable nature of Big Mom's current state also gives the rest of the fleet pause, as they are currently unsure of the best way to support her efforts. They kinda ya know.....don't want to get killed.

C) The Straw Hats' goal this chapter was not defeating Big Mom, nor was Big Mom's goal killing the Straw Hats. Big Mom wants her wedding cake, and the Straw Hats are simply aiming to hold her off until their rendezvous with Sanji. Most importantly of all, Big Mom is currently in a weakened state, so you can not use any feats performed this chapter as a means of power scaling Big Mom, Jinbe, or the rest of the Straw Hats.

D) You seem to forget that this is the crew of the future Pirate King. If post-timeskip they still can't even HOLD OFF a Yonko, then what was the point of such intense training and moving into the New World, which is basically Yonko territory? With the story currently where it's at, and the stakes higher than they've ever been, the crew can no longer afford to have members that are "fodder".

2d) Almost all the characters you claim are fodder happen to have abilities that are direct counters to Big Mom's:

Nami - Weather abilities to counter Big Mom's own, and a specific means of bending Zeus to her will

Brook - Soul abilities negate most of her homies, already demonstrated ability to injure Zeus and Prometheus. Invulnerability to lightning was just gravy.

Jinbe - Can manipulate sea water, and also the water in his opponent's body with Fishman Karate. Already disabled Prometheus once.