He frequently uses fictional settings to transport social critique. His writings are characterized by a sobering social realism. An anti-fascist, he has also written on the Alsace Soviet Republic, on eugenicist Alexis Carrel, on Holocaust denial, et cetera
In his book Le Goût de la vérité (1996), he accuses the Ras l"front cofounder Gilles Perrault of being "fascist".
In July 2001, the left-wing weekly Politis denounced Daeninckx as "using Stalin"s methods".