for how impressive xebec was , this clear shortcoming of his
definitely shows why his son despite being less honorable will prob surpass him leaps and bounds
BB is prob closer to being the actual davy jones similar to luffy and joyboy.
roger and xebec are more like precursors.
Xebec seem to be more like I will avenge my clan for what WG and imu has done to us for 800 years type person deep down. Him trying to become the king of the world seemed more like a manifestation of centuries of grievances. Because when the time came he readily gave up on his goal and went on a suicide mission in God Valley.
Even in this chapter he screams to Imu that this world not yours. He didn't say it is mine and mine alone or something like that.
Knowing how much imu and WG hate the davy clan it is quite evident that Rocks goal was more like a lashing out against centuries of persecution and suffering.
But the truth is if rocks wanted to realise his dream, rocks had to become just like imu. if he wanted to replace the world government he had to cross all the red lines which makes a human well a human and become a true monster. Xebec would not do so. Deep down he just wasn't that person. Neither was joyboy.
Imu was. And so would be Blackbeard.