@Leadfoot,
It is not the 'simplistic' piece of it that I have issue with.
Quote: God looks at mankind as we do a baby that we want to grow up
This is part of the problem. The biblical creator has endowed us with a certain (potential!) sense of what we consider mature thinking. My jury is out on exactly how much of that maturity we can gain without knowing some basic modern truths. At the very least I would say that perhaps we can achieve that maturity without our more modern understandings of where we live and the orienting of ourselves to that place in the universe. However, without our modern knowledge it might be more difficult to defend. Certainly there is value in modern knowledge in applying it to a defense of our maturity, even if we could defend our maturity without it..
And this is to say nothing about certain other cultures who apparently were much more mature (by our current standards) than much of our barbaric Western civilization (the California Indians for example).
There is no denying though, that that sense of (Western) maturity, our change in our social perceptions of ourselves and our relations to each other correlates very strongly with the advent of modern thinking and modern science has done much to buttress and indeed, inform that modern thought and hence maturity.
There are many examples and certainly they have not all been eradicated, but Rome wasn't built in a day. Slavery, punishment, sexuality, racism, women; these and many other things began to change with the advent of our Renaissance. The modern printing press was an exclamation point on that process as now that new thinking could be broadly disseminated - the first effect was people questioning others rule on them, other effects included a broad introduction to others' morals, mores, religions, - basically a mixing of ideas suggesting that maybe ones own views weren't the only (valid) game in town..
What is the point of all this? Well, I think the major take-away is that all this stuff started happening
when we disengaged from religion. When Western people stopped looking at God as the official source of information . When we released ourselves from these autocratic religious shackles, we started that process you describe below, but it was a process that happened
because we turned away from the biblical God... Not
due to this God. Capable of reading for themselves, they were now able to see the contradictions posed by the Bible. God became less and less of an active actor in their lives, culminating in Deism (they still couldn't quite bring themselves to boot God out entirely - that wouldn't happen till Darwinism and modern physics).
Also, you have still not addressed this issue of why that God gives some instruction and not others. The biblical God seems very concerned about some things and not others. In fact, the minutia is incredible! Too much! That space could have been spent on telling us about our solar system! Why couldn't that fit into Genesis? It seems a perfect spot for it. And again, why not?
I don't see it like this God took us so far like we do a child and allowed us to grow in each other steps appropriate to our age. Its more like what was taught us was shallow, deep, and everything in between in a haphazard, slipshod, way. Those people of the past had our brains, they were perfectly capable out of the gate of understanding as we do.
Note that my argument is based on the understanding that this biblical God actually spoke to the people who wrote the Bible and those words were logged in that bible. If you want to say the Bible was not so created, then I think you have a better argument as to your evolving society.