With a POD no earlier than 1945, how to make leftist revolutions in the west possible? This means communists/socialists and other leftists take to the streets and actually overthrow the western capitalist states.
This may be less implausible than one would think. During the late 60s to mid 70s communism/socialism was very strong in most western nations. It was quite united and a major pollitical force in some countries (Italy, France, Cyprus), or very divided but still strong in others (West Germany, Britain, the US).
When would be the best POD/Timeframe for it? How would relations be with the USSR? How would culture and ethics change? In essence: How would this world look like?
Is this effectively the nightmare of western conservatives, and the heaven of Leftists?
I know, many people will scream bloody murder, about how ASB this allegedly is. But leftism had a lot of support all over the west. And it is not so far fetched that they go the step to overthrow burgeoisie capitalism.