The beast Pirates aren't your typical pirate crew. Most of these guys were crushed by Kaido and his Calamities and forced into joining him. They don't follow Kaido out of a sense of loyalty, but rather fear. We were told well in advance in the story that in the New World, your only option is to join the Yonko's or fight them. These guys
tried to fight against Kaido, but utterly failed.
Pirates betraying one another was a theme that was setup back in the beginning of the arc, and has been emphasized multiple times throughout. What's happening now was the inevitable outcome, that anyone paying attention to the theme of the arc should have seen coming a mile away.
[automerge]1615605442[/automerge]
You do have a point here π its just lazy writing from Oda
Not even in the slightest is it lazy writing. The amount of setup and detail put into creating the theme of pirates betraying one another, and being forced into fighting for someone they don't want to since the timeskip began, and how it is all coming to a head now on Wano is ridiculous. Most of these guys were fighting for Kaido because there was no other option. Some are taking their freedom back now that they see a potential alternative.