Hmm, good points. Still, question remains, I think.
What is it that Sansha Kuvakei wants?
Ships are replaceable, crews are replaceable, genetics + personalities easily come by. Nation doesn't fit conventional material wealth motivations.
So, what do they want?
I think, maybe, that that question is no closer to being answered than it was before these events started.
Or perhaps you are over-thinking the entire situation. What if it's as simple as revenge against the "fools" who could not see his vision?
"But Capsuleers weren't around when Nation was destroyed!"
Ah, but the Empires were. Capsuleers fight their wars, do their dirty work. Capsuleers are the pawns of the Empires, the pets of CONCORD. No matter how fractious and divided, Capsuleers still provide services to the Empires and CONCORD still holds sway over them.
Destroy the Capsuleers, and not only are the Empires hobbled, but CONCORD loses it's primary mandate. Would the Empires put aside their differences after years of war? Probably not. So, take out the claws and teeth (Capsuleers in this case), and the Empires are at the mercy of Nation.
It's rather simple really. What does Nation want? Probably not the right question. What does
Kuvakei want? To get Capsuleers out of the way so he can take revenge on the closed-minded.
The "Heirs to a Mistake" are Capsuleers, the mistake was destroying Nation, not by said Capsuleers, but by the Empires that birthed them. Hence the "Heir" part. Extending that analogy, what exactly gave birth to that mistake? Individual freedoms taken to extremes, and not seeing the potential for working together. Which Capsuleers continue to make.
I mean honestly, you don't think Kuvakei is mad because the
Jove gave them the
capsule do you?