People
I once wanted to become an atheist, but I gave up — they have no holidays.
— Henny Youngman

Behind the line May contain spoilers.
Our reading
An editorial interpretation.
A one-liner joke built on a twist: the speaker claims to have considered atheism but dropped the idea because it comes without holidays. The humour comes from treating belief like a benefits package, judged by its days off rather than its ideas.
Context reviewed