Atheism isn't built on anything. Atheism isn't even really anything. It's a lack of believe. We don't have names for not believing in Unicorns, or Dragons, or anything except for Gods. Which is rather ridiculous when you think about it.
I didn't read the article, but if we have to defend everything every atheist says, then every Christian must defend everything every Christian says.
I didn't read the article, but if we have to defend everything every atheist says, then every Christian must defend everything every Christian says.