There's debate on whether he himself was a pedophile/pederast/whateva you want to call it. But he was still explicitly justifying pederastic practices publically in a country where there was already a great degree of acceptance of it among the bourgeois literary avant garde. An acceptance, which, btw, you will never find as far as I'm aware in any proletarian literary or philosophical traditions. No organic Marxist intellectual would tolerate these ideas for a second.

https://en.wikipedia.org/wiki/French_petitions_against_age_of_consent_laws