The most hilarious part of Eridan is just how ridiculously self-contradictionary he is. He is worst bastard by the end of Hivebent. He is all for genocide of land-dwellers. He almost never swims. Most his friends (mostly for given definition of friend) are land dwellers. He rarely if ever talks to sea trolls other then Fefery. Just. Wonderful. And then there is bubble Eridans that might have bothered with self-development. That might have ended up different. Just wonderful.

In his defense, he’s not that contradictory- He never swims because he’s hyperfocusing on keeping watch on the Landwellers and plotting against them, and also he’s an antisocial shitlord so of course his Friend Group is reduced. He may be friends with the rest more in tolerating them, and likely started being attached to the group by his flushed interest in Feferi and his Black Fling for Vriska. His hatred of Land Dwellers stems more of social tradition than being in tune with Seadweller Affairs.