The issue is that God knows everything. Therefore, God knew with absolute certainty that Adam would sin. Knowing that, God created anyway.
Adam sinning, once creation was initiated, was an absolute certainty. If God is omniscient, there is no escaping this logic. It is certain.
The choices of every human, because God made humans that way, are based on the individual's own will. ALSO, As you said, God's knowing is not the same as God's forcing. Therefore the choices are foreknown by God. They are not forced choices in the sense that God was an accessory to sin. They are, however, predetermined choices in that this world was created with total knowledge of all that would transpire.
Therefore, God is not a participant in sin.
You are presuming to know the mind and ways of God. God could just as easily have devised creation with an infinite number of possibilities. Your way of thinking is forcing God to one choice, one solution. In your paradigm, God's plan becomes a necessity to which God Himself becomes a subject. That makes His plan higher than God.
We know that God gave man the ability to choose. Man made a fatal choice. God offered Adam a chance to repent. If He wanted Adam to fail, why did He even give him a choice? Or offer him to repent?
God revealed to us that He desires that all men be saved. His plan is an offer to all mankind to be restored to our original state. That much was revealed. The rest is a profound mystery.