Personally I think it’s because 1 - The PCF have never correctly identified the primary contradiction in the imperial core that is colonialism 2 - Relied too heavily on Soviet worshipping for external propaganda making them extremely vulnerable to the bourgeois press revisionism and lies 3 - didn’t embrace progressive movements like feminism and adopted a reactionary stance that made the ultras and pseudo-Marxists (Maoists, Trots, French School, Frankfurt School) very popular during the uprisings of 1968
Personally I think it’s because 1 - The PCF have never correctly identified the primary contradiction in the imperial core that is colonialism 2 - Relied too heavily on Soviet worshipping for external propaganda making them extremely vulnerable to the bourgeois press revisionism and lies 3 - didn’t embrace progressive movements like feminism and adopted a reactionary stance that made the ultras and pseudo-Marxists (Maoists, Trots, French School, Frankfurt School) very popular during the uprisings of 1968