Exo 23:31 KJV - And I will set thy bounds from the Red sea even unto the sea of the Philistines, and from the desert unto the river: for I will deliver the inhabitants of the land into your hand; and thou shalt drive them out before thee.
My first impression is that God is sovereign! There is no reason to believe He was concerned about breaching the "freewill" of the inhabitants of the land or the "freewill" of those He commanded to drive them out! (Ya think the freewill of the inhabitants were the same?? I doubt it!)
Deu 3:2 KJV - And the LORD said unto me, Fear him not: for I will deliver him, and all his people, and his land, into thy hand; and thou shalt do unto him as thou didst unto Sihon king of the Amorites, which dwelt at Heshbon.
Jdg 4:7 KJV - And I will draw unto thee to the river Kishon Sisera, the captain of Jabin's army, with his chariots and his multitude; and I will deliver him into thine hand.
Jdg 10:13 KJV - Yet ye have forsaken me, and served other gods: wherefore I will deliver you no more.
Jdg 20:28 KJV - And Phinehas, the son of Eleazar, the son of Aaron, stood before it in those days,) saying, Shall I yet again go out to battle against the children of Benjamin my brother, or shall I cease? And the LORD said, Go up; for to morrow I will deliver them into thine hand. (Phinehas exercised his freewill and decided not to "go up". Ye think so?)
Eph 2:1 KJV - And you [hath he quickened], who were dead in trespasses and sins; (That's not fare! I have freewill! NOT!)