Is Atheism a Religion? Why or why not?

[Bucky Ball]

God's Existence is as mathematically certain as the fact that an infinite number of contingent beings cannot exist.

I'm sorry to hear that, and that's your opinion. 
If that is true then you don't need any faith, and according to Paul you are not saved. 

Now all you have to do is prove that the math discovered in this universe applies to the gods who do not and did not exist in this universe. 
Woops.

Think of all the saints who knew nothing about math or proofs, yet who believed anyway, Pissant. They deserve a FAR FAR higher place in heaven than you.
But not to worry. As Aquinas said, you get to increase your joy in heaven, by seeing the suffering of your enemies. Maybe you can make up some of that happiness.
What kind of torture do you enjoy watching the most ? Is it mental or physical ? Will you thank Jebus for allowing you to see the suffering ?

Also good to know that you don't believe that your gods are omnipotent. If they were actually omnipotent, they could create an infinite number of contingent beings.
Good to know you think the gods are constrained by Reality.