Taddeï later hosted Interdit d'interdire from 2018 until 2022 on the French-language version of the Russian state-controlled television network RT, when he resigned shortly before Russia invaded Ukraine out of "loyalty towards France".

[1][2] Taddeï has been criticised by other French journalists and public figures like Caroline Fourest and Patrick Cohen because of his vision of freedom of speech.

he invited controversial French personalities such as Dieudonné, Alain Soral, Jean Bricmont, and Marc-Édouard Nabe.

These figures are accused by their critics of having antisemitic opinions; Taddeï was criticised for giving them a platform, even though no complaints were ever made about anything that was aired in eight years of broadcasting, except when Mathieu Kassovitz expressed his doubts about the 9/11 case.

have been defended by personalities such as Bernard Pivot, Régis Debray and Alain Jacubowicz (president of the LICRA, the French League Against Racism and Antisemitism).