My issues with Atheism, Lets talk :)

[Darwinian]

If I were to try and prove atheism is true, which of course I can't, then I would probably plump for philosophical arguments over science. Like this one..

If the universe is "everything that exists," and it could be created, then, whatever entity could create the universe, would be outside that universe. It follows, then, that such an entity would be outside "everything that exists." An entity "outside" existence does not exist! A non-existent entity cannot do anything. Creation is an action that an entity must perform; it cannot be performed if the entity that would perform it does not exist!

Atheist have a disbelief in god(s) in common and not necessarily anything else and have many different reasons for being atheistic. Your statement I claimed Atheists default to science to "prove" their Atheism is true. is faulty as no self respecting atheist would even attempt to "prove" there is no god because it is clearly impossible, just as I can't prove there isn't a giant pink elephant in my kitchen that instantly disappears leaving zero trace of it ever having been there as soon as an attempt is made to study it.