What is your strongest reason for believing atheism is true?

[Nineteen]

Nineteen - is theism a religion?

I'll give you a hint - no, it is not. There are theistic religions just as there are atheistic religions. Someone calling themselves a 'theist' is not specifying a religion just as someone calling themselves an atheist. Theism and atheism are descriptive of the claim of god, not any doctrine surrounding them.

Apparently its being away from religion but it works like a religion , its a belief type , a political system , an ideology .