Atheists have a god. They see their god in the mirror every day.
That’s one thing I’d take issue with the author on - not all atheists “ignore those around them in need”.
The core of atheism and humanism in general is the worship of self. Many, in the pursuit of their own definition of righteousness, do help others, but they do it to aggrandize themselves.
As Isa 64:6 says, if you’re not doing it for the Glory of the Lord, all your works are as filthy rags.