In a nutshell:
Taking as a premise that atheism is unpleasant to God (the Abrahamic conception of same), how come it exists at all?
Certainly not because he lacks the power to get rid of it. For whatever reason, he accepts its existence even while so many people who claim to be following some of various competing forms of His True Message are convinced that our existence is disrespectful to Him.
Yet, I am an atheist. I know for a fact that I am not a monster attempting to destroy God's work or something like that.
How to reconcile all that? One obvious way is by deciding that God does not exist. Another, perhaps less likely but certainly more interesting to consider, is that regardless of what many people think God does in fact have no particular beef with Atheists. He certainly has no need of our acceptance, at the very least.
One speculative reason why that would be so: God does in fact have a purpose, if not an outright need, for Atheists. And assuming that to be true, the purpose seems to be fairly self-evident. We are the living reminders of the foolishness of listening to dogma without questioning it. Of being attached to words without developing heart and mind. We give our theistic brothers reasons to aim to better understand what a healthy religious doctrine is and what it is not, transcending the dead letter of the text and developing a living understanding in their own persons.
You're right, though, no magic ceremonies that I'm aware of.