The sad truth is that most acts of terrorism in the United States have been committed by by people of Western European Christian background, and it is nothing new.
The acts of abolitionist John Brown can easily be called terrorism but they pale in comparison to the lynchings of African Americans in the 18th and 19th century.
The bombing of the 16th Street Baptist Church in Birmingham in 1963.
The bombing of the Alfred P Murrah Federal Office building in 1995 which killed 168 people, many of them small children.
The Charleston Church shooting a year ago.
Let's not forget the many terrorist acts committed against abortion providers
This is only a small sample of what people who call themselves "Christians" do to others.
Trump and others on the right seem to think that all we have to do to protect ourselves is to get rid of the Muslims, the Hispanics (all evil doers according to Trump) and everyone else who isn't a Western European Christian. Wrong! People of all religions and ethnicity do evil things and Americans ow Western European heritage are up at the top of the list.
Most Muslims are good, hardworking people. Just like Christians, some of them have psychological problems that cause them to do terrible things. Let's not punish a whole group for the sins of a few or else we would all have to accept guilt.