So much words and I still don't believe in any gods.
- You got your definition of atheism wrong and are thus creating a straw man argument. Only by coming up with your own (false) definition of atheism, you can make your argument. However, almost all of the people who call themselves atheist do not claim to know there are no gods, they simply do not believe in any gods. Your argument applies to almost nobody. Redefining the label I apply to myself doesn't suddenly change my (lack of) beliefs into a claim of knowledge.
- There is no such thing as a-NewYork-ism or a-moon-ism. Why not? Because there is a lot of evidence to suggest New York and the moon actually exist. If there were evidence for any god's existence, you wouldn't be here making empty arguments.
Some interesting reading for you: https://www.quora.com/topic/Atheism
If you would browse the topic, you'll notice your argument has been proposed and refuted many times. But that's okay, yours is a rookie mistake (I hope....)
Nice try.... ;-)