Regarding the topic of free will and the problem of evil, I've been thinking about this topic for quite some time now.
Because of the way that we've been designed and created, along with the situation that we've been thrown into without even asking for it, I wonder just how much we can be held responsible for any alleged "sins" we might have committed in this life.
For one thing, I never asked to be born. Why should I be held responsible for something I never asked for to begin with? Why was I born into this life into a dysfunctional, lower middle class family? So much of one's life, upbringing, and the direction one takes is based on early, formative factors which are outside of the individual's control. A lot of it is based on nature and how we've been hardwired by our Creator.
I would suggest that humans can't be held responsible for design flaws, which seem to be the root of many (if not all) sins that human beings commit. Looking at the Seven Deadly Sins, it makes me wonder.
Lust: I don't see how God can blame any human being for lust, since He was the one who created us with sexual desire in the first place, along with the instinct for reproduction. He intentionally gave us a short, limited lifespan with an even shorter window of reproduction which is less than half of the average lifespan. Avoiding lustful, impure thoughts is quite a tall order for most human beings, especially those of us of the male gender. (Also, someone born in 17th century New England might have an easier time avoiding this particular sin than those born in late 20th century California, so the circumstances God puts us in are also outside of our control.)
Gluttony: I often wonder what God must have been thinking when He decided that human beings would need a certain amount of daily caloric intake to survive, along with a balanced diet of a variety of food groups. This, coupled with putting us on a planet with a relative scarcity of food. This creates a psychological effect such that, when humans do have a surplus of food, natural instincts kick in and people tend to pile it on. This is considered gluttony, but it would never have existed in the first place if God designed human beings in such a way that we could survive on a single grain of rice for an entire year (or a single oak leaf or a handful of moss or something like that). But no, He designed us so that we have to eat every day in order to survive. Is it our fault that we're forced to compensate for a design flaw?
Greed: Pretty much the same as gluttony. Scarcity of food and other resources is what leads to hoarding and the sin of greed. God could have made food and other resources more plentiful in order to reduce greed, fighting, war, and other consequences resulting from a paucity of resources. But instead, He chose not to do that. Why? Only God knows.
Sloth: This wouldn't even be a sin if there wasn't a scarcity of resources. If we only had to spend 15-30 minutes a day in the gathering of food and other resources necessary for survival, then we could spend most of our time lazing in the sun. But historically, it hasn't been that easy, as people have to spend most of their waking hours devoted to earning their daily bread, and even then, it's not always enough.
Then, of course, there's the need for sleep, which humans need 6-8 hours daily - one-third of their entire lives. God designed us that way. Why create things like fatigue and the need for sleep? Even worse is that God, in His infinite wisdom, decided to create insomnia. So, imagine the poor tired human who has to get up early for work the next day, and God decides out of the blue, "Hey, I think I'm going to mess with this guy so that he can't get any sleep. Then, when he's dragging at work the next morning, I can condemn him for the sin of 'Sloth'." Human beings had to create sleeping pills for this reason, and when we wake up all tired and groggy, we then need stimulants. We're forced to enhance our free will because God chose not to give us any free will in this most essential area.
Wrath: God chose to give us emotions. He chose to force us into a limited existence with the need for constant maintenance and physical needs/desires. We're locked into a process of aging and deterioration which we were given no control over, along with a scarcity of resources, hunger, fear, predators, harsh climates, disasters, earthquakes, floods. Not to mention the fact that we were created with a mass of nerves which detect discomfort and pain at the slightest problem. How can God possibly blame any human being for wrath? It makes no sense, especially since He was the one who created the situation to begin with.
Envy: Again, there would be no envy if there was no scarcity. God created scarcity, so God is ultimately responsible for the consequences which result from that. Likewise, God created human beings in a variety of different and uneven situations. A person who is born into a poor family might envy the one who was born into a wealthy family. Since God is responsible for deciding who is born into which family, then God has already started off the person born into a poor family with a handicap which would make him more susceptible to the deadly sin of envy. Similarly, someone born with a physical disability might be more inclined to envy those who don't have any disabilities.
Pride: This can be manifested in many different ways, but a lot of it might be attributed to our limited existence, something that we have no control over. We only have, on average, 70-75 years to accomplish something meaningful in our lives and even less time to actually sit back and enjoy those achievements. Pride is a way of compensating for that serious design flaw that we have absolutely no control over.
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All in all, I think most of our choices are merely responses to things we have no control over, such as our survival instincts, our instinct to reproduce, our physical weaknesses (hunger, fatigue, susceptibility to disease, old age, a time limit to our existence, etc.), as well as the natural tendency to avoid discomfort, suffering, or pain of any kind.
Under those circumstances, how can we truly have free will? How is it possible to avoid evil when people are given a survival instinct in a harsh existence with limited resources in which only the strongest and fittest can survive? What kind of choice is that?