But it's not. If you can tell me how scientifically the sun does not help create and then prosper life on earth, the same goes for the levels of various gases in our atmosphere, the nutrients in plants and the earth itself, the nourishment of water, the distance of the earth itself from the sun and so on, then I can say, "Ok I was wrong".
In 1975 bacteria were discovered living in ponds adjacent to a plastics factory, feeding on Nylon manufacturing by-products. The factory did not intentionally design their manufacturing process to nourish these bacteria. Nylon-eating bacteria were not intentionally created in the ponds to feed on the plastic. It just happened, by chance, unintentionally.
But whether or not you like it, whether or not you want to believe it is irrelevant, everything on this planet and at the very least in this solar system is in the perfect position to support human and other life. Whether that is by design or not is a different argument and one you can discuss in another thread. But to say that is not what is happening goes beyond the realms of science and common sense. And that's where I will end this part of the discussion.
And the bacterial physiology is perfectly adapted to thrive in these unique ponds. The ponds are are in a 'perfect position to support' this bacterial life.
No intentional creator needed.
As for our salubrious gas mixture, did you ever consider that life might have evolved to use the existing mixture, rather than the mixture being
designed for it?
In the early years of life on earth there was no oxygen in the atmosphere. Life's metabolism was anaerobic. But the anaerobic organisms produced this caustic element as a metabolic waste product.
It built up, and eventually terrestrial life nearly wiped itself out with its own wastes before some enterprising organisms learned to incorporate this toxic gas it into their metabolic processes.
The oxygen-eating bacteria thrived in the new, caustic atmosphere, and eventually evolved into apes, aardvarks and anacondas.
The universe was not fine tuned for life. Life evolved to thrive in the universe in which it found itself.
Creationism puts effect before cause.