Give me your best example of when God intervened to make "things that work". I fail to see any "hand of God" in this universe.
You answered this question yourself you just don't realise it.
That is the only reason why... Cooperation and socialization.
What does God have to do with cooperation. This is a challenging topic so I will start with the comments of miscreanity who commented on it earlier.
What is actually the worst possible outcome is to have one strategy, religion, or culture adopted by everyone.
This is the point I disagree with. I think we both agree that the optimal way to increase degrees of freedom for individuals is to allow and enable instead of controlling. A universal strategy is an essential foundation that enables freedom. Without that, we have the situation that is developing now with varying viewpoints where some sets are progressing toward destruction and others are being dragged into declining entropy. Competition can take place when there is room for growth but on a globally saturated scale, nobody wins.
Reproductive strategy is likely to become essentially irrelevant for humanity, possibly within our lifetimes. It seems inevitable that our existing biological bodies will give way to different forms that will carry us off-planet. At that point, allowing and enabling all individuals to thrive in a constructive environment becomes paramount. What then is the protocol that keeps that freedom from becoming destructive? Of course, my thinking is that the protocol is outlined in the Christian bible.
This relationship between God and cooperation is as fundamental as it is necessary. God breaks us free from ultimately self-destructive conflict and enables ever higher orders of cooperative synergy. The more we bring ourselves into alignment with God the greater the levels of cooperation that become possible.
I discussed this point in some detail here:
See: Superrationality and the Infinite
Common myths establish an immediate trust between strangers and allow for unimpeded cooperation.
That is why people who otherwise would kill each other work together and trust each other when they believe in the same religious or political dogma.
This of course has nothing to do if the underlying dogma is true or not.
Many UFOlogists would immediately trust other UFOlogists. Same goes for FlatEarthers, Christians or Muslims.
The lower the IQ of individuals in any given group, the easier it is to establish that common trust based on the underlying myth or belief.
If the trust has been established, it remains even though the myths are shown for what they are... myths. How much stronger is the trust among believers, when the Bible is proven to be truth and fact.
Re-read my post and think about it some more.
Christian myth is the same as the Flat Earther movement from the psychological point of view. Once you are part of the group with common beliefs you cling onto that belief no matter what, that is because most people (with lesser intelligence) do not want to be wrong.
You convince yourself that what you believe is true and when you see others in your group expressing their beliefs it validates your (false) belief. Herd mentality and confirmation bias is at play here.
It is easier to abandon your false beliefs when you leave the group, and/or have good critical thinking skills.
PS. Most scientists love to be wrong, that is why you don't see too many scientists who believe in ancient myths.