I must confess to a cruel game with this post. I saw this poster and thought, “What? But most of these people weren’t atheists!” Surely someone could do a far better job with this idea than that, and everyone would see the problem here (at least John Wilkins did, as did many of the commenters). You were supposed to be inspired to make a better version. At least one person was, but they took it in a completely different direction than I expected.
Anyone care to try and do something better, with a positive message?