The problem—the serious problem—with words that contain dehumanizing designations is that such words license the foulest actions. They can license murder and even genocide. This was made clear in the era of authoritarian dictators in the 1930s and again in Rwanda and many other violent places. We should not go there again.

Language that dehumanizes the other is acutely dangerous.  When we come to believe—often unconsciously—that the other is not human that gives us a license to kill.  We need no Double 00 formal appointment. We are allowed to kill. That is what happened in Nazi Germany. That is what happened in Rwanda. That is what could happen in modern America, or Hungary, or the United States or Canada.

Dehumanizing ideas or words can push people to exclude the dehumanized groups because as Jason Stanley said in his book How Fascism Works.

“the process of dehumanization limits the capacity empathy among citizens leading to the justification of inhumane treatment, from repression of freedom, mass imprisonment, and expulsion to, in extreme circumstances, mass extermination.”

This sounds extreme, because it is extreme, but it has happened in advanced countries such as Germany. Genocides and campaigns of ethnic cleansing are preceded by periods of dehumanization by words. Words are important. Words issue licenses to kill. . We should never ignore them.

As Jason Stanley reminded us in his book ,

“In the cases of Nazi Germany, Rwanda, and contemporary Myanmar, the victims of ethnic cleansing were subjected to vicious rhetorical attacks by leaders and in the press for months or years before the regime turned genocidal. With these precedents it should concern all Americans that as a candidate  and as president, Donald Trump has publicly and explicitly insulted immigrant groups.”

And, disturbingly since Stanley wrote these words Trump’s rhetoric has become broader and more vicious. Things are getting more dangerous. It’s time for us to take heed.