I am a pacefull guy but here is my opinion
IMO the main reason for this is becouse some countries are too tolerant.And yes i agree this is how it shold be. BUT if in my country happened that, no arab person would have been here happy anymore.
This year 3 romanian journalists were kidnapped in Bagdad. Guess what. All arab comunities here negociated and done their best to make sure they will come back safe at home and that happened. Guess what . It was the fastest release from Bagdad.