>>95031442>>95032689>>95033723Mindbender, Destro, Tomax and Xamot were behind the plot to replace Cobra Commander with a new leader, so they were 100% on board with Serpentor. All of them but Mindbender had already tried taking over Cobra, and failed to last long, they all openly disliked Cobra Commander and blamed him for all their defeats, so they had a lot invested in Serpentor as their new leader.
The Baroness has a smaller role in those episodes of the cartoon, and wasn't part of their cabal, but she seemed to be on the same page as them.
Zartan, the Dreadnoks, and the lower-tier Cobras just tended to side with whoever was paying them.
But look at Serpentor's 'birth':
https://youtu.be/2lwf5_DMkwcImagine being there in the room for what appears to be a kind of supernatural event, as this hyper-masculine Cobra Messiah made of the DNA of leaders, and made of ANGER, and he comes to life and immediately starts slapping their most powerful enemy around, and he's here to lead them all to victory, and it's no surprise that they all bend the knee so quickly.