1. I didn’t have to convert. I didn’t even have to tell anyone. And it was free. No money changed hands and no guilt was applied. I just said to myself, “I’m an atheist” and it was done. Welcome aboard!
The only essential 'belief' of atheism -- if we are to use that word -- is that there is no god, or, that there is no reason to believe there is one; an important distinction.
Jesus' wider place in our culture is curious. His arms do not stretch over Sydney or Melbourne as they do Rio. Ostentatious displays of religious devotion are uncommon, and almost always unwelcome, especially if there is even the faintest whiff of insincerity about them.
Jesus was quite clear on the question of tax, famously advising the Jews to render unto Caesar the things that are Caesar's. Fast forward to contemporary Australia and there's precious little rendering going on.