I am going with the idea that the Warruders are ruled by a giant AI. The enslaved marine life could be de-evolved descendants of its creators that the AI decided would make it more useful to its self preservation. Though it would be interesting that their original form was humanoid so the Warudaroids are almost a mockery of what they were. I was going with the idea that humanity is having more and more of its own management being handled by AI. So the Warruders are almost like a potential outcome for humanity if their dependence on AI goes too far.