Xebec really is a POS wow. To stab through kid Loki not even just beat him up too. No wonder Garp and Roger teamed up and wanted him dead.
Whitebeard's reaction says it all too, the man who loves his family and sees everyone as he adopts as his own family, especially his "sons" regardless. Someone who never punish/burden you for "sins of the father (or mother)" too.
Whitebeard betraying Xebec at God's Valley theory fuel intensifies.
I hope Xebec is actually dead then and doesn't come back, but I fear he will still be alive or resurrected given Oda is so reluctant to reveal him even at this point. Idk if he can be Imu somehow but if he isn't, at least he failed at becoming king of the world then thankfully but Blackbeard will most likely accomplish that anyway and thus in his stead too.
The Marines and WG are just as bad ofc but Xebec really does seem to be the most evil, vicious, ruthless, nastiest etc pirate and individual even too.