Nope that is not Calvinism. In Calvinism, God doesn't make choices based on his foreknowledge.
Never said he did.
The analogy was to demonstrate how easy it is to understand pre-decision without causing sin and how easy it is to understand pre-decision without doing violence to others' will.
You're too couched in flaw-finding, renniks, and it's getting in the way of you understanding what is otherwise very easily understood.
He makes the choice for everyone.
No, He makes the choice for Himself. Again, the WCF states quite plainly what God decides He decides without any regard for what the human may or may not do. Another straw man is being argued. Another failure to correctly understand Calvinism is demonstrated.
"II. Although God knows whatsoever may or can come to pass, upon all supposed conditions; yet hath he not decreed any thing because he foresaw it as future, as that which would come to pass, upon such conditions.
III. By the decree of God, for the manifestation of his glory, some men and angels are predestinated to everlasting life, and others foreordained to everlasting death.
IV. These angels and men, thus predestinated and foreordained, are particularly and unchangeably designed; and their number is so certain and definite that it can not be either increased or diminished.
V. Those of mankind that are predestinated to life, God, before the foundation of the world was laid, according to his eternal and immutable purpose, and the secret counsel and good pleasure of his will, hath chosen in Christ, to everlasting glory, out of his free grace and love alone, without any foresight of faith or good works, or perseverance in either of them, or any other thing in the creature, as conditions, or causes moving him thereto; and all to the praise of his glorious grace."
He chooses not only what he will do, but what they will do.
No, sin took away your choice, not God.
"although God knows whatsoever may or can come to pass, upon all supposed conditions; yet hath he not decreed anything because he foresaw it as future, as that which would come to pass, upon such conditions....The foreknowledge of God will necessarily infer a decree, for God could not foreknow that things would be, unless he had decreed they should be; and that because things would not be future, unless he had decreed they should be." If God be an independent being, all creatures must have an entire dependence upon him; but this dependence proves undeniably that all their acts must be regulated by his sovereign will. If God be of one mind, which none can change, he must have unalterably fixed everything in his purpose which he effects in his providence."
Everything means everything, every sin directly caused by God's decree.
No, everything means everything but the conditions stated. Everything but the causation of sin, violence to human will, and violence to secondary causes.
You can claim it says something ese but it states what it states and the lack of understanding does not change that fact.
Neither does argumentum ad nauseam.