I don't understand why you insist on placing that limitation at God's feet. Because of sin, WE limit our subsequent options.
God's being selective in His application of grace is not a violation of our beginning free will. Without it, we constantly paint ourselves into a corner. The end.
"For the wages of sin is death,
but the free gift of God is eternal life in Christ Jesus our Lord." Romans 6:23 NKJV
That "free" gift has conditions to it. Namely, we surrender our will to Him.
Jesus said,
"For whoever desires to save his life will lose it,
but whoever loses his life for My sake will find it." Matthew 16:25 NKJV
You taught that no choices means no effectual free will, and that God can limit our choices. Yet, you say He does not violate our free will.
Therefore, you must believe that limiting effectual free will is not a violation of free will.
Am I mistaken?