What has happened to atheism? It used to present the human person as a colossus straddling the universe. It saw man as having surpassed or outgrown God. Man was capable of making a veritable paradise on earth. The Man of the past was good, altruistic, self denying, he was heroic. The atheist vision of Man used to be that he was Divine!
Then came Dawkins.
Now, the atheist sees him as self seeking, needing to be restrained from his innate selfishness by legislation and external coercion. Now he cowers in dark shadow.
The first is vision enthused by Christianity, it presents Man as redeemed, the second is post-Christian, it seems a vision of Man stuck in Original Sin.