"On a cold day last fall , Santiago Carrillo, the leader of the so-called Communist Party of Spain (PCE), crossed the picket lines of striking Yale University workers in New Haven, in order to give a speech on the campus. When asked how a 'communist' could scab on a workers' struggle in this way, he replied that his speech was more important than the strike of the custodial workers. Besides, he added, the American labor movement is 'reactionary anyway.'
"The incident shed some light on the class character of Carrillo and his cohorts in other European countries, such as Berlinguer in Italy and Marchais in France. While they like to describe themselves as 'Eurocommunists,' they are really nothing more than scabs on the workers' movement." (here)
That's how Georges Marchais (secretary general of the French Communist Party for 22 years), Santiago Carrillo, and Enrico Berlinguer are remembered, that is, when they are remembered, because they are mostly forgotten. The so-called Eurocommunist movement which they led, itself largely a long-lost memory, attempted to adopt New Left ideas.