The Republican Party and its acolytes in the news media are trying to demonize the protest movement that has sprung up in response to the all-too-common police killings of unarmed African-Americans across the country. The intent of the campaign — evident in comments by politicians like Gov. Nikki Haley of South Carolina, Gov. Scott Walker of Wisconsin and Senator Rand Paul of Kentucky — is to cast the phrase “Black Lives Matter” as an inflammatory or even hateful anti-white expression that has no legitimate place in a civil rights campaign.

Former Gov. Mike Huckabee of Arkansas crystallized this view when he said the other week that the Rev. Dr. Martin Luther King Jr., were he alive today, would be “appalled” by the movement’s focus on the skin color of the unarmed people who are disproportionately killed in encounters with the police. This argument betrays a disturbing indifference to or at best a profound ignorance of history in general and of the civil rights movement in particular. From the very beginning, the movement focused unapologetically on bringing an end to state-sanctioned violence against African-Americans and to acts of racial terror very much like the one that took nine lives at Emanuel African Methodist Episcopal Church in Charleston, S.C., in June.

The civil rights movement was intended to make Congress and Americans confront the fact that African-Americans were being killed with impunity for offenses like trying to vote, and had the right to life and to equal protection under the law. The movement sought a cross-racial appeal, but at every step of the way used expressly racial terms to describe the death and destruction that was visited upon black people because they were black.

Even in the early 20th century, civil rights groups documented cases in which African-Americans died horrible deaths after being turned away from hospitals reserved for whites, or were lynched — which meant being hanged, burned or dismembered — in front of enormous crowds that had gathered to enjoy the sight.