There was no question to "dodge" - merely repeated attempts to associate atheism with fascism, communism, libertarianism, abortion, objectivism, or whatever convenient boogeyman presents itself.
Why did all the major atrocities of the 19'th century occur under the auspices of Christianity? Your 4.5 million dead is ludicrously low - try 2-5 million dead in the Belgian Congo alone...
I will not, however, count the Black Plague or the many diseases that killed people in Central and South America and so on.
Actually yes there was:
How do you establish a libertarian society when people can't agree on what "liberty" entails?
Well?