It doesn't follow logically that there is a god, let alone that he created anything...
That's apparently debatable, hence the existence of this site!
And that is the point, we can't separate function and purpose as unrelated questions. If we could determine that the entire universe fluked itself into existence for no particular reason, then of course we could use that to make assumptions about the arbitrary nature of life also. Although even then, there are atheists like Hoyle who could conceive of a purposeless universe, but when it comes to life;
'one arrives at the conclusion that biomaterials with their amazing measure of order must be the outcome of
intelligent design. No other possibility I have been able to think of...'
You're basing this on several false assumptions
conclusions from observations
We are the only species asking these questions, amongst millions, amongst the 'great silence' of the galaxy. Dinosaurs ruled for millions of years, many with very large cranial capacity, and never acquired what humanity did in a blink of an eye. At the very least we can objectively observe that our intelligence is not the sort of think 'evolution' tends to inevitably achieve.
Had we found earth, the solar system, the galaxy to be teaming with sentient life all asking the same questions, I'd accept the implications of that, that we are apparently not the primary intended beneficiaries of the creation of the universe.
And I'm willing to accept the opposite implications also, those of observed reality