I would take anything that the apostate D’Souza says with a tablespoon of salt.
His marital antics and his rejection of the Faith make him the last person I would consult on morality.
While he (perhaps rightly) accuses ex-President Barack Obama of being filled with “post-colonial” rage, he ignores that he has conveniently destroyed and denigrated his Asian Catholic heritage in order to fit in with the White Anglo-Saxon Protestant crowd.
For an authentic Catholic denunciation of the abomination that is Nazism, please read Pope Pius XI’s magnificent encyclical, “Mit Brennender Sorge”.