It’s kind of no surprise that Dualscar was meant to be this Christian Crusader character, actually, given everything Eridan represented.

Eridan’s the embodiment of the ‘English’ aspect of Lord English; he’s the racist, explicitly genocidal military commander, associated with English wizards and obsessed with all the things one might associated with some nasty English coloniser.

It’s all there in their myth roles, too. Hope’s the aspect associatated with Westernism and Euro-Christian religion. Eridan, as the Prince, is an active destroyer; as soon as he lands on LOWAA, he’s killing the natives (whose noted resemblance to Quetzalcoatl could well be very deliberate) despite zero indication that they drop anything or were meant to be killed. Cronus does the same thing - but as a Bard, he’s passive, and instead of being the one to do the deed, he invites destruction by calling upon the land dwelling authorities to commit genocide for him.