Yes, it's difficult to wrap our minds around this truth
If you're referring to Calvinism, yes. Especially when our experience is evidence against it in every waking moment.
I assume you're speaking only for yourself, because as for me, I see every minute of every day filled with the truth of God's absolute predestination of all things for His glory and the welfare of His children.
Thank God.
I notice your rebuttals never address Romans 9:11 or Acts 13:48. Or this one...
"Blessed is the man whom thou choosest, and causest to approach unto thee, that he may dwell in thy courts: we shall be satisfied with the goodness of thy house, even of thy holy temple." -- Psalm 65:4