I suggest a book for you; The Encyclopedia of Wars. If you don't like this one there are 100's of others that research and record the same subject, to wit; “more people have died in the name of religion than for any other reason." These observations are legitimately invoked by your cut-and-paste and an O'hair quote that you see to have missed; "Religion has caused more misery to all of mankind in every stage of human history than any other single idea." Like all Leftists I think Maddy only read the parts she liked ...
The book looks at about 1700 wars of all kinds going back over a thousand years. The historic data they accumulated from documented history shows that of more than 1700 wars fewer than 150 were classified as having a religious cause, Christian or other. This is less than 10% of all wars accounting for less than 2% of all people killed in warfare. The balance can be more closely associated with atheism in one way or another.
Ironically the only religion today that (still) promotes, if not offhandedly, the idea that anyone should be killed for not believing, is Islam; the religion Democats defend. Anyway;
More than 100 million died as a result of WWI and WWII; secular wars - started nonetheless by 'Godless' people. Interestingly, over 600,000 perished in our Civil War; a war to decide the freedom or continued enslavement by Leftists of the Black man in America. Purely secular war nonetheless.
Most wars have nothing to do with religion. They have to do with taking ground, increasing power base and the biggy - response to challenges to political authority communism, ofwhich atheism is a vital component, being the leading example of this one.
Now here's where it really gets interesting with respect to your heroine. Just in the 20th century, the estimated numbers slaughtered in genocides is between 150 and 180 million human beings. While not declared war, genocides are more significant in this argument and could be viewed as 'religious' wars in a sense because; they involve, as a primary element the violent purging of all organized religion by the 'Atheist State'. China and Russia accounted for about 100 million that some people still alive today can remember. Did O'hair somehow miss this in her 'misery index' assessment?
History in no way no matter how you try to re-context or manipulate it supports the hypothesis that religion is the major cause of conflict or of man's misery as O'hair would lead us to believe while atheism is the documented front-runner in misery. What it does say to me is that even while I am not a Christian (which I am not), the odds say I have a better chance of survival with the God crowd than with the non-God crowd.
As for the rest of it; hospitals built and all that goody-goody bullshit … too bad Maddy is not alive today to see the progress the American Atheist and their partner the Democrat Party has made in major American cities run by the Democrat Party for the past 50 years or more; shining examples like Detroit, Baltimore (the city she personally helped turn into a cesspool), Chicago … where, by the way, the not-in-the-name-of-God murder rates are among the highest in the world.
It's ironic she ended up in the 'killing fields' at the hands of her own people. Purely a secular murder mind you.