This opinion piece in the New York Times -- "Frederick Douglass's Fight Against Scientific Racism" -- is decidedly worth reading.
Of course, "scientific" racism persists in 2018, as one repeatedly learns after delving into the comments of any of the laudatory articles Trump links on his Twitter feed. The final paragraph, which quotes from one of Douglass's final speeches, also rings true today: on more than one occasion I've heard (well-meaning, I hope/assume) white people of my acquaintance who, in noting the depressed state of many minority communities, have wondered why "they" continue to struggle and asked what should be done about "them."
And for readers who haven't seen the movie yet (note that I'm not attempting to shame you for not having seen it yet; apparently that's a thing happening elsewhere on the interwebs), forgive me for the spoiler -- but Black Panther concludes with an especially relevant quote on that point. In a speech to the United Nations, the titular character remarks, "More connects us than separates us -- but in times of crisis, the wise build bridges while the foolish build barriers. We must find a way to look after one another as if we were one tribe."
It's a sentiment that runs counter to much of our current political discourse, what with "BUILD. THE. WALL!" serving as a rallying cry for our current commander in chief, but it is a sentiment that we would all do well to adopt.