Thank you, Metchosin.

Exactly my point was made in Metchosin's link: beheading was popular until modern times in Germany, Sweden, France and other countries. The last time a person was beheaded by the government of France was not 1777 or even 1877, but 1977.

It's easy to say "these terrorists are inhuman." Would we say the same about European culture in the 1970s? (Some of us might, but the rest of us would see this as mere partisanship).