Kant may not be informed of genetics but he was not far from the basis of the evolution of the species.
My point with reference to Kant has nothing to do with the psychological factors yet.
What Kant presented is from reason not psychology.
It is like logically a square-circle is an impossibility.
Along this line of logic and sense, the idea of God [God-in-itself] is an impossibility.
Thus the question of whether God exists as real is irrelevant.
The idea of God is only relevant for a personal psychological reasons to soothe the existential angst. It is like a tranquilizer to soothe one’s stress and anxieties which cannot be pinpointed to a specific spot.
I have argued; for something to be known, it must be empirically possible, i.e. it must be empirically based.
For example, scientists will discover new germs and bacteria, new kinds of food, etc. and all these must be empirically verified and justified with evidence.
It is even possible for human-liked aliens to exists somewhere in the Universe but this is very slim and can be easily confirmed if there are available evidences that can be verified and justified.
It is also possible for an empirical-based anthropomological God like the “bearded man in the sky” like the image below [this is empirically based thus possible] to exists but obviously that is very slim awaiting evidence if any. Such a God is inferior to the ontological God.
Now the standard God that is believed by most theists is the ontological God [an absolutely perfect Being] which is an impossibility because it has no empirical elements but it is a fully mental idea only - equivalent to a square-circle.
That is the point, your argument;
- with biology [empirical] there is theism [empirical].
If the conclusion is empirically based, then it has to be empirically verified and justified. But since the idea of God first emerged there is no empirical evidences to justify the existence of a God [as defined].
The existential angst is related to biology and from there arise theism to soothe the existential angst. If you refer to the Abrahamic religions, it is very obvious the central driver is existential, i.e. salvation from physical existential mortality to eternal life in heaven. It is the same with all other forms of theism albeit more subtle.