Say you don’t like black people. Say you are president of the United States and don’t like black people. What can you do? This is what Nixon did, as reported by Dan Baum in Harper’s:

At the time, I was writing a book about the politics of drug prohibition. I started to ask [John] Ehrlichman a series of earnest, wonky questions that he impatiently waved away. “You want to know what this was really all about?” he asked with the bluntness of a man who, after public disgrace and a stretch in federal prison, had little left to protect. “The Nixon campaign in 1968, and the Nixon White House after that, had two enemies: the antiwar left and black people. You understand what I’m saying? We knew we couldn’t make it illegal to be either against the war or black, but by getting the public to associate the hippies with marijuana and blacks with heroin, and then criminalizing both heavily, we could disrupt those communities. We could arrest their leaders, raid their homes, break up their meetings, and vilify them night after night on the evening news. Did we know we were lying about the drugs? Of course we did.”

What about guns? Blacks are killing each other in urban ghettoes riddled by drugs and associated crimes. If you don’t like blacks, that’s a good thing, right? You want them to have lots of guns. So you push the Second Amendment and get Congress to protect purveyors of guns from criminal and civil liability.