(A) "The realm your god exists in does not require something to be created to exist."
answer to (A) there is not such thing as realm where G_D (Allah) resides. He Just "Is". The residence of G_D (Allah) is most closely related to yourself as he resides in all things that he made live and gave them knowledge to know him through themselves and internal mind reflection of questioning his own existence and G_D'S existence. G_D is closer to you than your own jugular vein.
(B)"That's how Allah didn't need to be created."
answer to (B): True, Allah has no needs; But that we do in order to reflect his existence within our own intellect and soul.
(c) "If Allah didn't need to be created, what out of logic stands to say that nothing else does not need to be made to exist."
Answer to (c) True things do need to be created in order to know they exist but G_D (Allah) is sufficient witness unto himself. It is us who question his existence not vice versa.
(D) "If it can happen once it can happen again within the realm of Allah's existence."
Answer to (D): True all things can be made and unmade in any realm. But remember G_D (Allah) (having no realm as such) can not be equated with that which is made because the made things are measurable and limited and G_D (Allah) is unlimited and immeasurable.
Here is the formula:
(i) G_D (Allah) + (A Realm) (realm which is our body... like a temple) = Reflection
(ii) Reflection + Materials = Manifestation
(iii) Manifestation + Observation = Understanding