Perfect example of the irrational hatred people have had instilled in them by their governments/parents/education. To be clear, this guy saw a group of UNICEF workers on the street trying to help people, and thought "no, they're helping the people I've been taught to hate, so I will attack and threaten them with violence/death for doing so."
Absolute muppet. Should be rounded up and sent back to his shithole country.