Quote: Chappers @ 18th May 2019, 10:20 PMI think it's probably because Stalin was our "Ally".
In the interests of completeness, I should tell you that I emailed the notorious joke (above) to a member of the "Seinfeld" writing team, suggesting that the line might very well have been spoken by Jerry to Elaine, maybe reading the first sentence from a magazine and then ironically quipping the second.
I got the reply "That is so Jerry!"