In 1956, Bakker openly supported the crackdown on demonstrations that expressed solidarity with the protests in Poznań in Communist-led Poland.

When the Netherlands were in the process of adopting a new constitution, the draft of Article 1[1] banned discrimination "on the grounds of religion, conviction, political orientation, race or gender".

Bakker published his memoirs, entitled Wissels - Bespiegelingen zonder berouw ("Reflections without Contrition").

Bakker never distanced himself from communism as an ideology, although he stated that he felt 'used' by the communist practice in the Eastern Bloc.

The Marcus Bakkerzaal, a room in the current building of the Dutch House of Representatives, was named after Bakker in 1991.