Yes, people like to blame the outsider, no matter how ridiculous it is. Ever hear a news story about an angry partner killing a spouse? About a person stabbed to death in the street? Pushed in front of a train? Hit by a car? Most of these you'll never hear of because they're such routine daily occurrences. They're done by US! Normal local people who grew up here (wherever that might be).
Nevermind refugees. People everywhere are much more dangerous than any terrorists. Somehow we don't like the idea of banning everyone from everywhere so we feel justified in judging one group as more dangerous than another to give us a sense of safety.