I can't run an 11 second 100 m dash, but I don't think Usain Bolt is supernatural.
I don't know of a single person who thinks what humans do is supernatural. You seem to be using your own personal definition on this one.
How is a bird making a nest any different than a human making a car?
But humans making wine from grape juice and yeast is not supernatural?
Bear with me 'til the end....
A bird making a nest is different than a man making a car (both supernatural by "my" definition which others use -though one more so because it is more super) because the nest is simple and made by a life form with simple creativity, and the car is made by a life form with more complex creativity.
A bird makes a nest instinctively -based on necessity, and has limited decision-making/creative power employed to build the nest from materials available where they are -where the nest is to be built.
This is made possible by simple and minimal processing, memory, imagination, interface, etc.
A bird cannot make a car.
Man makes a car out of necessity and desire based on a future man intends to create, wherein man can go far, fast, in an attractive, sweet ride which will impress the opposite sex and without having to walk or pick up horse poop.
This is made possible by more complex and increased processing, memory, imagination, interface, etc.
Man can make much greater things, but man cannot make a universe.
At the very least, you should understand why it seems logical to some that the universe had a creator with much more complex and increased processing, memory, imagination, interface, etc.
However, the universe would be made from that which existed prior to the universe, by one existing prior to the universe -all made possible by pre-universe stuff.
And..... The question remains as to how that creator existed/developed in the previous or first place/state.
Nature produces creativity. Creativity can do what nature alone could not, but creativity can also reproduce that which nature can do at times when it would not have otherwise done it.
Nature produces that which decides its course by decision -or that which takes creative control of itself. Man is an example on a small scale, God could be an example on a greater or overall scale.
It does not appear to some that the universe had a creator because it was created by an automated process and the creator/the creator's activity is not readily apparent -but automation does not mean creativity was not applied -as we see by the fact that even cars are produced by increasingly automated processes.
What we see as "natural" -which is really only natural NOW that it has already been initiated by whatever -may be similar (very simple example) to falling dominoes -not having seen the setup or initial push.
There are things about the nest and car that make creativity SELF EVIDENT -can we say the same about the universe? (Yes -but more on that later)
So.... The idea of a creator is NOT ridiculous.... NOT illogical....
However, the questions still remains as to the nature of pre-universe stuff (that which could be arranged into the universe stuff)... And how a pre-universe being possessed of the processing, memory, imagination, interface necessary to design and create the universe and the automated process involved existed/developed in the first place/state.