The foundation of any theology exists because human beings have natural weaknesses. Once can create a "perfect human" through technology, he can be born with omnipotent, we can choose the best intellectual gene, the strongest physique gene when he is born, and then use AI technology to input all the knowledge we know into his brain. Therefore, it must be a natural atheist because it regards itself as a god.
Why should a really strong smart guy regard himself as a god? Being really strong and smart is not even
close to being omnipotent. Again, you don't seem to hold a very high opinion of your god.
Also, if you believe that weakness is good, then genetic engineering can help with that, too. We can genetically engineer people with super-human weaknesses; super-cripples with every disability that exists in nature, with a few artificial disabilities thrown in for good measure! Will their suffering be good for their souls? Will they reach new levels of spiritual awareness that those of mere average weakness can only dream of? I think not.
I wonder if OP thinks that these gene edited babies are perfect, immortal creatures who will never catch a disease, therefore regarding to it as "humanity creating God?" ARE these gene edited babies immortal? Are they going to grow up with perfectly good manners and right conduct and be immune to all diseases? Will these gene edited babies lord over us? Maybe this is what he means.