Why the rant, Schraf?
This is totally consistent. The religious zealots believe that atheists have to be immoral (or amoral) monsters because they don't believe there is anyone (thing) to make them behave. They themselves demonstrate that while that is not true for a large fraction of atheists it is true for the cultists to a great degree.
They HAVE to have a morality imposed on them externally. They have not internal voice to tell them how to behave. That is they have no conscience.
So if there are no laws and punishments for an action they may well, when it is convenient, take that action. Since that is true of them they believe it must be true of all.