impure

First is "us versus them" or "pure versus the impure," or those who properly "belong" in the country, and those who do not.

Two major developments in the mid-1800s showed why impure water is dangerous.

But instead of a barrier to keep out the impure, they are means of removing it, of excreting all that “poisons the blood,” to use Trump’s Hitlerian metaphor.

In this case, the presumption is that most voters share Trump's repulsion for "impure" people whose gender or race falls outside rigid boundaries he has defined for them.

The Nazi dictator spoke of impure Jewish blood “poisoning” Aryan German blood to dehumanize Jews and justify the systemic murder of millions during the Holocaust.