Alright. I’m going to stop commenting on this thread.
When you say you're going to stop, well, you stop!
I can explain how wrong you are but I’m not going to do that.
Try your best!
ASIC is a microchip designed for a special application. These chips/chip can be as small or as large as necessary. The size doesn’t matter especially when you have unlimited electricity for free.
The fragment you've copied from Wikipedia is the only accurate thing in your whole story.
Now, imagine that for your attack you will need 1 million of them, get a chip, multiply its size by 1000 in both width and length and tell me who is going to create that thing and who has the capabilities of doing so. Once you figure it out we could go to the next step, cooling this mofo of a monstrosity and then figuring how the hell are you going to power a single circuit with the required power, and just a head's up for comparison (this will not be all accurate but whatever), you will need to pump in the energy the top 3 aluminum smelters in the world require.
But you know what, for the sake of simplicity, let's assume that you managed to pull unlimited power out of that rock, what is next?
Run for cover as fast as you can?

Imagine the discharge when you pull the energy out of it (of course in theory), a few spectacular flashes, and then one hell of an explosion when that rocks becomes the second sun of Sri Lanka for a few seconds.