To say that that article is biased, is an understatement.
For God's sake (the irony
), let's make something clear. History witnessed Christian mass murderers (Torquemada) and atheist mass murderers (Stalin - Hitler was a Catholic, please note) so the author's argument is flawed.
Atheism is not so popular for 2 reasons. First of all due to intolerance from Theists. A person who is an atheist risks exposing his views in public because some fundamentalist theists tend to be nasty.. And secondly because Atheists don't live with the illusion that there is someone who is helping them or will give them an eternal life in another world and this makes living as an atheist
psychologically tougher.
I never heard of a case where an atheist attacked or killed a theist for his beliefs but I heard a lot of cases where theists killed atheists for their lack of faith so comparing all atheist to a mass murderer psychopath such as Stalin is an insult to all of us (atheists).
Theists need to remember that a lot of scientists that discover a lot of things to make our life better/save our life in case of sickness/accidents etc are in fact atheists so before bashing us, stop & think about it
Ps. Observing what is happening in the world, you will note that whilst public atheism is on decline, secret atheism has drastically increased. It's also convenient to be a public theist and a secret atheist