Why I believe that predestination is absurd

I have a hard time believing in predestination. This sets God up to be the" fall guy" for everything and leaves people to blame him for their horrible life. I do not believe that a god of love would create someone just for the purpose of going to hell and give them a crappy life on top of it. I have a problem believing that I am just a chess piece for God to get what he wants. If we were indeed just robots, why would he need us to be thinking beings? Why would we need to exist if he already knows where we will end up? I wonder if there are some events that are predestined and others that are own choice. If every decision has been made for us, why do we need to decide anything? Maybe God has a destination picked out for you and you have to decide if you want it. I doubt seriously that God would set himself up to be blamed for everyone's misfortune. That would make him imperfect if he created humans to be little more than crash dummies. A can of corn is predestined to be eaten. A lawn mower was created to cut grass. Predestined to me means that there is no choice in who you become. If all our steps are remote controlled by God, why does he talk so much about rebellion in the old testament. How can you rebel, if God has decided every action that will occur in your life. That would mean that God rebels against himself and he would be a kingdom divided against itself. So God makes you a godless person and he gets to blame you for it?