How do you become an Atheist?

[theVOID]

I've decided that physics is philosophy. A scientists philosophy of the amazing complexity of nature itself approximated by us into what we can comprehend and predict.

Scientists have a philosophy (most commonly methodological naturalism) but I don't see how that gets to Physics == Philosophy.

You can have a philosophy (interpretation) of physics, but physics exists without an interpreter.

To hold knowledge, however small, about the inner workings of the universe is to know the universe, and by extension, yourself.

Agreed, while it's not necessarily practically applicable to know that I'm the product of some quark-gluon plasma long since expired, it does change the way you reflect on things, and ultimately how you assign value to objects and states of affairs.

Knowing that we're star dust makes it imo impossible to assign any value to life other than to say that life is valuable to the living. We're no more cosmically valuable than anything else.