I listen to a lot of old radio shows. I came across this PSA and found it interesting. This was at the end of a sort of jazzy NYC Detective series I've found entertaining.
The recording is a brief and, IMO, intelligent, maybe haunting message. You can contrast the idea portrayed then with the reality since and up to our current state of Evangelical American Domestic Terrorists. Wrong turn somewhere. The idea didn't fit the reality of 1950 either I'm sorry to say. A concept rather than a reality.
Nice bit of propaganda there. Back when this was broadcast, the Soviet Union was using our de facto segregation laws and open racism in their propaganda against the USA (they weren't wrong, they just used it as whataboutism when the USA called them out on civil rights).