The fact that God's plans are acted out in the course of Human history is no more a point in favor of Calvinism than it is Arminianism. You will disagree with me. But that is because you are a Calvinist. Heilgeshicte is the wondrous plan of God through time and space and it has been enacted exactly as the Almight has seen fit. And yet human clay has been part of that process. Not in the role of a marionette, but as an active participant, choosing to do both evil and good, God knowing each step which would be taken at every turn and yet still allowing choice to be made.
Doesn't the phrase "determinate counsel" make it mean that God did a bit more than just "foreknow?"