[dragonwriter]

> The presented breakdown of religions isn't very coherent.

They are atheism plus the top four in the US by number (when excluding “unaffiliated”), which may not be your preferred basis for a selection, but is clearly a coherent one.

> The Abrahamic tradition is the progenitor of Judaism, Christianity, and Islam, in that rough chronological order

Rough?

[photochemsyn]

Atheism also isn't really a coherent religion, it's more like checking 'none of the above' on a multiple-choice test. I suppose there are the "New Atheists" who'd disagree, but they're pretty insufferable IMO.