That's a very good way of putting it.
So killing the Force would do more than seperate the Jedi and Sith from their powers. Everyone would die.
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We don't actually know, but given the relationship between life and the force, that does seem to be one possibility. Perhaps even a likely one.
Yes, that's how I see her too. She's DS because she wants the force to die, the consequences for everyone else be damned.
Basically Kreia is the Star Wars version of Ahab, at war with god, here represented by the force in this case.
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An interesting analogy of Kreia being like Ahab. At war, trying to destroy the ultimate power in the universe that can not be destroyed.