What is the Purpose?

[Neo-Scholastic]

It exhibits teleology, "about-ability" (within the limits of its perceptual abilities,...

Wrong. When you say exhibits that means you are assigning theleology to the chemical process that just happens to do the things you describe.

.. an omnimax* monotheistic god cannot be the ultimate origin of purpose....It is already standing on every conceivable finish line holding every trophy.

You make a good point. It deserves more reflection.

"Life" (as we know it, Jim), not gods, is the source and sphere of relevance for teleological concepts. They don't need to be imposed on life by magic (as if that idea even made sense). They are aspects of the nature of life.

Wrong again. Teleological concepts, are just that - concepts. And they are concepts assigned by one deterministic chain reaction on to another. Second, a causal chain has no definable start or end point. This means that you must arbitrary select one cause as the point where intention occurs and arbitrary select one effect as its desired end. For example, take the following causal chain:

A ---> B ---> C---> D ---> E- ---> F

Which effect is the desired end of cause A? If you say it is F, why isn't it D? And why isn't F the desired end of C and not A? Only an oustide observer can designate the start and its desired end. And you cannot say that one causal chain, like a human electro-chemical reaction, applies it to the electro-chemical process of the bacteria. Why? Because now you are saying that one meaningless physical process is transferring meaning it doesn't have onto another.

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It doesn't matter what you like or dislike. Everyone has a worldview, whether explicit or tacit. You are an athiest, therefore you have an atheist worldview. If the shoe fits, wear it.

I'm sure I have different worldview than him even though we both don't believe in gods. Atheism is not a system of beliefs that one must follow ffs

You just have an atheist worldview that shares some but not all beliefs with another atheist worldview.