You cannot succeed if the goal is to convince them Christianity is not evil because they believe (religiously) they are good and anything opposed to what they believe must be evil. You want children to starve and they want to feed children, You want people to die from lack of medical services and they don't. Nothing you say can penetrate that closed, unconditional goto loop.
I don't know how you deprogram these people, or if you can. But I will give it some thought from the insight I got here reading the article and posts.
If you go to my home page from there I provide information and a strategy with small tactics that can be used to transform liberals into conservatives. The first essay begins with a question which gets to the core of a liberal’s belief system. When answered, most liberals reveal to themselves that in their core beliefs they are actually conservatives. That is the starting point.