I must apologize Swede P. I have to admit that my metaphor was written with strictly an American audience in mind.
Charles Lindbergh, noted aviator, is also known in the US for his opposition to WWII. He was the chief spokesman for the "America First" movement, which greatly admired Hitler and his racist policies, and sought to keep America out of the war. In the US, Lindbergh is synonymous with appeasement, much as Quisling is equated to "traitor" in certain Nordic countries.
"Black face" was a particularly disgustung and repulsive element of early American television. Black actors were not allowed on television, but certain roles called for black actors. Consequently, white actors would smear thier faces with black shoe polish and play the roles. This devolved into a particularly brutal form of humour where "black face" "comedians" would portray what they considered the worst aspects of black people (stupid, ignorant, uncultured, etc.). Much like KBLK's portrayal of black people.
Franklin D. Roosevelt I am sure you know. I consider him one of the greatest Americans, whose courage and convictions prepared the US for WWII, despite the overwhelming (pre-Pearl Harbour) opposition of most voting Americans and politicians. He did what he thought was right, not what was easy or popular.
Hope this helps.
Cheers, Terry