If mankind obeyed then noone would be starving. That's what I'm trying to get you to see.
Say you have nation 1, who follows all God's law (living in harmony), and then nation 2, who is now ruled by Hitler, just stomps all over nation 1, and uses them for sex slaves. The basic premise of Judaism, is that if you followed God's law, then you would have magical "blessings" and be protected. However, Christian/Jews will now make excuses why nation 1 got stomped upon by Hitler: (1) they weren't perfect enough, (2) it was part of God's plan, or a test, (3) ALL of mankind wasn't following God's law.
Note: my initial start conditions are a perfect nation 1, who does not have corruption, poor education, human rights abuses, stupidity, and "Satan" eating it out from the insides. Even if the entire world was magically in harmony, a 1km asteroid could still whack right into it, and theists would then make excuses (1) they weren't perfect enough, (2) it was part of God's plan, or a test. ... Or a wheat fungus could wipe out the entire crop, and that would be because we didn't follow some hint in Psalms, about knitted socks. It could never be God's fault, because by definition, God doesn't have any faults.
Perfect food distribution and harmony could also be established if any entire world simultaneously followed any single ethical rule-set, slavishly, like robots, and intelligently developed itself. However, Abrahamic God didn't give out a perfect rule-set. He told people to go forth and multiply, without (1) any population constraints (2) any environmental legislation. He also gave lots of examples of how you were allowed to slaughter neighbouring tribes, select women by rape, enter into polygamous relations, and keep half the population as slaves. At no point do Judaism or Christianity suggest that a society should use reason, logic, science or intelligence to overcome the limitations of its bronze age origins, and develop more sane rules, concerning children, women, slaves, warfare, homosexuals, and stoning everyone.
I will give you this, though. If the entire world suddenly started following God's law (whatever that is), and all 7 billion were magically educated in science and philosophy, and practiced awesome Buddhist meditation techniques, and pacifism, then we would probably live in peace and harmony, for a while. However, there exists a few problems with achieving your communist nirvana, in practice:
(1) Despite everyone claiming conversations with God, he is very sparing on real information, like how to avoid cancer, cure potato blight, levitate objects. It's almost as if God wants us to do the hard yards, and be in struggle for thousands of years. Despite the best intentions, some people believe complete crap. The truth can only be decided by "doing the experiment", and failing badly. Example: Communism. Another example: monetarists believe that you can run interest rates down to 0%, and the economy will still be OK. (This is actually accidentally following God's law on usuary.) Example: The trickle down effect. Example: Free trade will fix Africa. Example: fossil fuels. Example: fishing reefs with dynamite.
(2) No matter how "good" your society is, God always seems to make another society, next door, believe in a different God. He does this by making his information very lame, and only believable if you are a fruitcake. Even though people say they "believe" in God, very few have belief that would allow them to make even minor changes to their lifestyle, or stop eating KFC. It's mostly an act, because God says he will burn you in hell (cf Islam, Buddhism, Vindaloo).
(3) God, for some reason, created man as a creature who had two options: (1) to live nomadically, illiterate, pointlessly, in low populations, (2) to live in agrarian civilization, doing more labour than any other animal, and made us unable to eat any foods that haven't been bred for 15,000 years. I notice, with interest, that many animals seem adapted to their environment, and can eat grass. They can live in harmony, without a complex legal system, army, and slaves.
(4) God also created us with a strangely intense and variable sex urge, because we would otherwise have the intelligence to not bother with reproduction. This urge is terribly disruptive to communal living, esp when coupled with all the venereal disease that God invented. (Although it can be explained by evolution, religion's handling of it is poor.)
I guess what I'm saying is that: your arguments seem to answer the last post, but are not generally substantiated. I don't know, you might have provided proof of something, somewhere. Evolution and absence of God seems to explain better, why the world is a shit hole, in parts. The theist view is a way of inserting a God, into a silent-God world, without having to prove it's true, and always having excuses when it fails.
Here's a thinking exercise for you: can you think of a situation where you could not explain away God's world; his action or inaction? Is there anything you cannot explain, by arbitrary excuses? I bet with your attitude that I could explain anything, and it would work until a few posts away, when someone pulled me up, and I needed to make a new excuse.