Interestingly, I recently got into a debate with a theist on YouTube who claimed that, "...God is love." I countered this by pointing out God's crimes against humanity in the Bible. I also argued that if God was truly omnipotent, omnibenevolent and omniscient, as defined by mainstream Christianity, nothing evil could ever befall humanity. He ignored the salient points of my argument and posted several Bible quotes, "proving" that God allowed Satan to hold sway over the earth. When I pointed out that he had basically ignored everything I said, he actually had the gall to ask me what he had ignored, stating also that atheists were non-believers because they are ignorant. At that point, I abandoned the debate. You can't reason with someone who is not guided by reason.
"The world is my country; all of humanity are my brethren; and to do good deeds is my religion." (Thomas Paine)