I get frustrated because this post of yours ignores what I wrote in the prior post.

There is no such equilibrium because not all miners have the same costs for the same difficulty.

Also you can't assume they didn't double-spend more than one transaction.

Those are just really obvious errors. I shouldn't even need to make this post. You should have thought of that before making the post and thus realized not to make the post.

(I been awake too long and my forehead wants to fall on the keyboard, and even in this dilapidated mental state I can easily see those errors)