People talk about Islamophobia. A phobia is an irrational fear of something. Islamophobia suggests an irrational fear of Islam and Muslims who follow Islam. 

When a Muslim follower of Islam like Abdul Razak Ali Artan and other Muslims attack, maim and kill innocent non believers  and when non Muslims can't tell when moderate Muslim followers of Islam will turn radical, lash out and maim and  kill non believers,  is it irrational to have a fear of followers of Islam?