Only the Rabid Militant ones who want to push atheism onto others like the Rabid Jihadi who wants to push Islamism...
or any other militant religious fanatics who want to force feed their religious practices onto others.
Don't forget the inquisition and the nut cases (Torquemada - among others) who ran it.
No religion is devoid of rabid believers who visit misery on those who are not as rabid as they are.