How to convert an atheist

[Cyberman]

your right i make a mistake. but god did great the earth ex nihilo

That's one of the theistic claims that atheism rejects without the evidence to support it.

and atheism does focus mainly on the three western religions does it not.

Not really. Atheism is the null position of "you make the claim, now support it and we'll let you know". If the three western religions get the most attention, it's the fault of the followers of those religions.

atheism does not believe nothing religion can be replaced with nationalism patriotism egaliartism or in this case science. just because a person is irreligious or secular does not mean they do not subscribe to some ideology

Not sure what you're saying here. If you're saying that atheism doesn't believe in nothing, then you're correct. I can't unpack the rest of what you said.