I am likewise surprised by some of the so-called atheists. Anyone who tells me I am immoral is nothing different than any preacher or rabbi telling me I'm a "sinner." (None of which have the power to condemn or take up the sword of their God's authority.)
Today, "morals" are defined by a quasi-religious philosophy based on esoteric hobgoblins.
A greater number of "atheists" and "pagans" adopt many of the same tenets of the Judaic-Christian ideal. They subscribe to the Judaic fetishism of "sin." Most are so wrapped up in their own polemics that they have become nothing more than anti-Christians. They just slap a new label on it hoping nobody will notice. They replace the idea of avoiding "sin" with "morals."
"Morals" are a deceptive replacement for the "avoidance of sin," they are a man-made construct.
This is the foundation of the gay religion, the neo-pagan religion, the environmental religion, the new religion of prime time television, and the Marxist religion.
Although "Wicca" is a partial extension of Judaic fetishism, it is purely primitive nonsense, the type that led to the execution of Socrates because he was being impious to the gods of Athens.