You’re right, God created Adam and Eve with full knowledge of what they would do.
But as somebody beautifully put it above, He did not do nothing. He took flesh, became man, gave us the full revelation of Himself (Who is Love) in Jesus and then died in reparation not only for Adam and Eve’s sin, but also mine and yours, in order to show forth His Glory and Love for us, and to ultimately save us.
Have you ever considered that it is very likely that not only specifically Adam and Eve would have fallen, but that any first set of parents would have sinned?
God loved us so much that He did not choose to just “not create” us, but he chose to create us, then discipline us, then save us.
Imperfect but effective analogy to earthly parents: if a couple knew ahead of time that their first child would die at birth, but that their 10 consequent children would live a long life, with the exception of one or 2 more in between, even though all of these would hurt themselves, make bad choices and fall while maturing, these parents would still want to have this family, trusting that, at least most of them would finally get past their adolescence, remember the education they received and grow into wise happy adults.
Please don’t bring free-will into the discussion because Adam and Eve only did what god knew with 100% certainty they would do.
You are mixing the 2 possible definitions / understandings of predestination here.
From some Protestant points of view: predestination = predetermination, i.e. God not only knows everything ahead of time, He also commands “everything” into being, so that everything that ever takes place was thus previously determined by God.
From the Catholic perspective: predestination = prescience + ordination of events influenced by man’s free-will.
You see, the first one, as you presumed, does clash with free-will.
However, in reality, God did not “make” Adam and Eve do what they did, even though He knew they would do it. It was their free-will indeed.
He can see past the apparent “unknown” factor introduced by our choices, and the fact that He can do that just shows how much more powerful He is than you would expect a good human-level forecaster to be.
Please take a peek at these 2 links for further reading on the subject:
“We ought to understand that while God knows all things beforehand, yet He does not predetermine all things . For He knows beforehand those things that are in our power, but He does not predetermine them. For it is not His will that there should be wickedness nor does He choose to compel virtue. So that predetermination is the work of the divine command based on fore-knowledge . But on the other hand God predetermines those things which are not within our power in accordance with His prescience. For already God in His prescience has prejudged all things in accordance with His goodness and justice.” (St. John of Damascus)
newadvent.org/fathers/33042.htm (scroll down to “Chapter 30. Concerning Prescience and Predestination.”)
"Predestination (Latin præ, destinare), taken in its widest meaning, is every Divine decree by which God, owing to His infallible prescience of the future, has appointed and ordained from eternity all events occurring in time, especially those which directly proceed from, or at least are influenced by, man’s free will. It includes all historical facts, as for instance the appearance of Napoleon or the foundation of the United States, and particularly the turning-points in the history of supernatural salvation, as the mission of Moses and the Prophets, or the election of Mary to the Divine Motherhood."