Love your work, this is very true

You plagiarized that phrase about the Duke from Edmund Burke including the spelling of Guyon, but you added the "secular-atheist" part. He was hit in the head with a thrown rock, but he was finished with clubs and sabres, if you want to be precise.

Previous comments seem to fail to understand the simple point of the slogan.
Atheism, a simple rejection of a claim without any dogma of its own, does not offer excuses to stone people to death.
Unlike dogmatic ideologies including Christianity, Islam, communism, fascism, etc.

Smart.

...the atheist stalinist regime did an efficient job of using up just about every other mode of execution that might have been featured on this t-shirt. I do not intend to assert that atheism causes one to brutally murder millions of people, but only to point out that, if this t-shirt intends to assert that atheism prevents one from committing such heinous acts, it ought not to attempt such a claim by implying an un-stained historical record on the matter.

Louis-Alexandre, duc de La Roche-Guygon et de la Rochfoucald d'Anville: stoned to death in front of his wife and mother during a secular-atheist french revolutionary riot. Presumably there are others too.