[Serious] Why I consider Atheists the Dumbest of the Dumb

[Agnostico]

The definition of something immaterial is without physical form. That's what I learnt anyway. 
Air, space, time, neither of these even come from something with a physical form

So you do misunderstand the materialist/physicalist position. Roughly, all that exists is matter, energy, space, and time. Concepts only exist in physical mediums, like brains. All the things you describe fall within those boundaries. Air might be immaterial for purposes of walking through it; but it's not immaterial in the sense that it is not matter, energy, space, or time.

https://en.wikipedia.org/wiki/Materialism

Fair enough

---

Your logic works backwards. It stupidly assumes all things are true until disproved.

No no no. Im agnostic, im not claiming to know the truth. I don't accept a claim unless it is proven
Does God exist, yes or no... I can't find conclusive evidence, either one is possible