This is the America I grew up in. If you think it’s vanished…just because you don’t see signs like this, anymore, you’re dumber than a hoe handle. This level of racism still exists. Everywhere in this land. Yes, there are solid reasons it’s not as blatant as it once was. Mostly economic. Person-to-person, that doesn’t mean a whole helluva lot.
If you encounter this crap, let the source, individual or business, know how you feel. “Polite” is not required in my humble opinion.
Eideard 
…sometime between 1968 and 1969 at the Village Gate nightclub in New York City.
Caught some of those sets live at the time. Standing room only.
“The tiny, all-Black town of Mound Bayou became a safe haven for Emmett Till’s mother as she traveled to Mississippi to testify in the murder trial of two white men who lynched her son in 1955.
Hundreds of people — a good portion of Mound Bayou’s 1,500 residents — turned out Thursday evening to watch the movie “Till.” The feature film is going into wide release across the U.S. this weekend after being in limited release since Oct. 14.
…Mound Bayou was founded by formerly enslaved people in the cotton-growing Mississippi Delta in 1887 as a freestanding community where Black people could thrive amid the hostility of the Jim Crow era.
NAACP leaders, including Mississippi’s Medgar Evers, coordinated with Dr. T.R.M. Howard, a physician and entrepreneur in Mound Bayou, to provide safety and security for Till’s mother in the town. Mound Bayou also provided shelter for Black journalists who covering the trial 35 miles (56.3 kilometers) away in Sumner.
The lynching of Till galvanized the civil rights movement, and it has reverberated for generations with Black parents who tell their children to be careful in a country that has not shaken racism.” https://www.record-eagle.com/ap/national/emmett-till-movie-shown-in-black-town-pivotal-to-the-story/article_379bb35c-0d41-5b71-a621-a91d8e4465be.html
Medgar Evers was assassinated by a white supremacist in 1963.
“The white slave had taken from him by indirection what the black slave had taken from him directly and without ceremony. Both were plundered, and by the same plunderers. The slave was robbed by his master of all his earnings, above what was required for his bare physical necessities, and the white laboring man was robbed by the slave system, of the just results of his labor, because he was flung into competition with a class of laborers who worked without wages. The slaveholders blinded them to this competition by keeping alive their prejudice against the slaves as men–not against them as slaves.”
Frederick Douglass, My Bondage and My Freedom (written after ten years of reflection following his legal emancipation in 1846)