This article highlights what’s wrong with atheists who are too militant. You’re never going to convince someone of their incorrectness by throwing it in their face. Plus, it’s just rude to begin a conversation with the intention of attacking someone for their beliefs. So just don’t.
However, I do think there should be a correction about her usage of “militant atheism” meaning “an atheism whose adherents force their beliefs on others”. Militant Atheism doesn’t mean forcing atheism on others, although some atheists, like the cousin in the article, who are militant may do this. Rather, militant atheism sees religion as a negative force. It might seem like a fine distinction, but it’s important to understand the difference between the reason why a person is in your face, and the criticisms that person is making.