I am a atheist but...

[Napoléon]

Sorry - YOU are not an atheist

An Atheist does not accept the existence of gods

YOU are a Xtian - you believe in a specific god

And to call theism a life of sin is nonsense - there is still to this day no study that suggest that theists - and specifically xtians - are any more moral or ethical than atheists.

Sin is defined as an offense against a god - by definition sin does not actually exist to an atheist. However - being both moral and ethical does not require belief in a "spook" . And atheists are both moral and ethical for the correct reason - because it is the right thing to do - without the need to be PAYED for it with an eternal reward

WOOOOOOOOOOOOSH!!!!!!!!!!!!