Harari has a way of annoying people by challenging their prejudices. The list of the potentially offended is long, but here is an example: On 23 August of 1572, French Catholics who stressed the importance of good deeds attacked communities of Protestants who highlighted God's love for Humankind. Between 5000 and 10000 Protestants were slaughtered in less than 24 hours.
In that 24 hours, more Christians were murdered by Christians than by polytheistic Rome in the 300 years between the Crucifixion and Constantine's conversion to Christianity.
The Pope celebrated by commissioning a fresco of the massacre in the Vatican (off limits to visitors).
Sapiens: A Brief History of Humankind by Yuval Noah Harari, pg. 216