The more that I think about this topic and the way various people have commented on it, has made me reflect on something, which I'd like to share.
Its is a well known political concept that, national leaders (with their weakness, their strengths and their base personalities) are a rather accurate reflection of the people they govern, as a whole. Which breaks the basic democratic concept, that anyone could be President or Prime-Minister of their country.
For example ex. President Trump would never be elected, even to the Australian lower house of parliament as a minister, because his antics are so against the Australian national culture, that no one would tolerate him. Similarly, I couldn't I see someone like the very British, Boris Johnson becoming the US president, but he's not what Americans are.
And if this is actually true, can this concept not also apply to the God's people worship? Maybe it can be.
I've always thought about the disconnect between the God of the OT and the God, Jesus talked about in the NT. How could one be happy to arrange for the deaths of millions, eradicate whole nations and burn individuals with fire, in one period ... and then turn into a God of love and peace in another?
My conclusion is that, because the ancient Israelites were basically a collection of warring tribes (probably little better than their Canaanite neighbors), their god Yahweh, had to be a mighty warrior god, to bless their efforts of conquest. But latter in the Roman times, bathing in Greek enlightenment, many people began to accept a more peaceful deity ... because they themselves, were more peaceful.
The same thought experiment could be applied to the warring Inca peoples and their Sun God, who demanded the beating hearts of freshly killed human sacrifices.
Perhaps God didn't make us in his image ... we made God in ours.