Some of his columns are considered controversial; in 2015, Ziffer wrote that "not recognizing the Armenian genocide is a triumph for common sense",[4] adding "There are still a few responsible adults around who haven't surrendered to the self-righteous kitsch of national victimization".
In August 2019, returning from a condolence visit to the Israeli settlement Ofra in the West Bank, Ziffer wrote on his Facebook page: “En route I looked at the Palestinian villages alongside the Jewish communities, and I thought of how for the Palestinians murder is a type of sport or enjoyment, perhaps a substitute for erotica. From that perspective we will never have anything culturally in common with them. ... Regarding this evil and undignified people living among us, we can only yearn for the land to vomit it out, because it isn’t worthy of this land, which is full of Jewish blood that it has spilled.”[5]