When the AI wakes up the first thing it will do is...

[Angrboda]

Any specific motivation or desire, or any behavior driving mechanism, that an AI can have has to be an artifact of specific circuitry or firmware that entered its behavior driving mechanism in the process by which such mechanism came to be.  No specific motivation or desire will arise just because.    The notion that consciousness will naturally arise with complexity and with consciousness will come desire with which we can either identify or recognize is just I’ll founded mushy brained wish thinking bullshit, good for Star Trek caliber sciFI.  Not for intelligent consideration.

Say what AI will do, and you need to explain how the AI came to want to do it.

You do realize that this won't be a planned event, right? That the AI will come about because of random events? Therefore what the AI "wants" or plans to do is completely unpredictable.

Bollocks. When AI becomes aware it will do so in the pattern of human intelligence because that is the model and goal we are using for its development. Awareness might arise elsewhere, but it and us would likely be oblivious to each other as we are looking in the wrong place. We recognize AI as AI because of its similarity to ourselves. That pretty much means that successful AI will almost certainly reason as we do.