i like that Big Mom considered themselves Xebec's people, even though they were famous for their infighting. though i suppose the captain never threw hands at them (outside of their recruitment lol)
it comes down to haki, but look. Xebec got some of the strongest and could resist Domi Reversei even just a small amount, as opposed to the giants who havent been shown to use at all, fully losing themselves to the switch
so where do we go from here? history is gonna play out like been told, Roger and Garp taking down Xebec. but Imu still a very present threat, that cant be banished with another Joyboy knot. something has to force them to leave too, without dealing with Roger and Garp