That is a ridiculous statement. I think God would be insulted by that line of reasoning. Why would God give us free will and then test us pretty much continuously for as long as we are on this earth if it was all just pre planned? He would simply conclude that it is not necessary to create a universe where every little detail was all predetermined. Where’s the challenge in that? I also don’t think God would create little children and have it predetermined that they were going to be beaten to death by Mom’s boyfriend. I can imagine a universe where he would allow that to happen because he gave us free will and tested us constantly but not one where suffering was preprogrammed.
I am sorry you feel that way. I have always believed that God is the one who determines whether one lives to a ripe old age or is gone too soon.