Freewill is self rule and without it you have imprisonment. And who among us wants to live in prison? That’s why your argument is ineffective. Without freewill you can not have happiness.The Christians' objection to this argument involves freewill. They say that a being must have freewill to be happy. The omnibenevolent God did not wish to create robots, so he gave humans freewill to enable them to experience love and happiness. But the humans used this freewill to choose evil, and introduced imperfection into God's originally perfect universe. God had no control over this decision, so the blame for our imperfect universe is on the humans, not God.
Here is why the argument is weak. First, if God is omnipotent, then the assumption that freewill is necessary for happiness is false. If God could make it a rule that only beings with freewill may experience happiness, then he could just as easily have made it a rule that only robots may experience happiness. The latter option is clearly superior, since perfect robots will never make decisions which could render them or their creator unhappy, whereas beings with freewill could. A perfect and omnipotent God who creates beings capable of ruining their own happiness is impossible.
Second, even if we were to allow the necessity of freewill for happiness, God could have created humans with freewill who did not have the ability to choose evil, but to choose between several good options.
Third, God supposedly has freewill, and yet he does not make imperfect decisions. If humans are miniature images of God, our decisions should likewise be perfect. Also, the occupants of heaven, who presumably must have freewill to be happy, will never use that freewill to make imperfect decisions. Why would the originally perfect humans do differently?
The point remains: the presence of imperfections in the universe disproves the supposed perfection of its creator.
You’re asking the question in a round about way, if God is perfect why did he make imperfect beings that makes imperfect freewill decisions?
The engineer created a product that did exactly what he desired. It met his requirements and one of those requirements was to allow this creature to be able to self rule. It was a perfect creation in that it had been created to his specifications.
Now you can’t have a creature that self rules unless you are willing to accept the fact that creature can make decisions independent of the designer. Now I don’t know if you are a parent but you can’t have children unless you are willing to understand at some point they’ll make decisions independent of their parents.
Lot’s of parents have problems with letting go and letting their children have freewill. But sooner or later freewill is exercised and you hope as a parent that they make the right freewill decision. And children learn as we all have learned through trial and error. That is called learning and we learn our entire life what we should and should not have done.
The United States Navy learned years ago in order to make an successful torpedo. That torpedo would need to be able to self learn. If it missed it’s target it would remember, turn around, then correct, reengage kill the target. One could hardly make the argument that is not perfection. Because it accomplished in the end what the designer intended.