Kammala jumla mai zuwa: A lokacin abubuwan da suka faru a watan Mayu na 1968, an kwantar da Althusser a asibiti saboda ɓacin rai kuma ba ya cikin Latin Quarter. Yawancin ɗalibansa sun halarci abubuwan da suka faru, kuma Régis Debray musamman ya zama sanannen ɗan juyin juya halin duniya. Shiru na farko na Althusser ya gamu da suka daga masu zanga-zangar, wadanda suka rubuta a bangon: "Mece ce amfani da Althusser?" ("Menene Althusser?"). Daga baya, Althusser ya kasance mai rikitarwa game da shi; a gefe guda, bai goyi bayan motsi ba kuma ya soki motsi a matsayin "tashin hankali na talakawa", yana karɓar hujjar hukuma ta PCF cewa "rashin lafiyar yara" na anarchistic utopianism wanda ya shiga cikin motsi na ɗalibai. A gefe guda kuma, ya kira shi "mafi mahimmancin abin da ya faru a tarihin Yammacin Turai tun lokacin da Resistance da nasara a kan Nazism" kuma yana so ya sulhunta dalibai da PCF. Duk da haka, mujallar Maoist "La Cause du peuple" ta kira shi mai gyarawa, kuma tsoffin ɗalibai sun la'anta shi, musamman ta Jacques Rancière. Bayan haka, Althusser ya shiga wani lokaci na "binciken kansa" wanda ya haifar da littafin "Essays in Self-criticism" ("Éléments d'autocritique", 1974) wanda ya sake duba wasu tsoffin matsayinsa, gami da goyon bayansa ga
mamayewar Soviet zuwa Czechoslovakia.