If slavery is a reason for black people not to be Christians then the same reason could be used for white people. People forget that white people were also slaves throughout the christendom, so white people's ancestors were also slaves.
Take for instance that novel "Ben Hur" where its author made one of the most popular historical blunders when he made slaves as rowers on Roman war galleys. Lew Wallace made an honest mistake because it was normal throughout the Christian history in Europe to use slaves as rowers of the galleys, who were treated very badly and therefore didn't live for long. Church participated in it by not banning it and also giving blessing to it. Like when having chaplains for the galley slaves, or when its own catholic military orders used them.
Take for instance that novel "Ben Hur" where its author made one of the most popular historical blunders when he made slaves as rowers on Roman war galleys. Lew Wallace made an honest mistake because it was normal throughout the Christian history in Europe to use slaves as rowers of the galleys, who were treated very badly and therefore didn't live for long. Church participated in it by not banning it and also giving blessing to it. Like when having chaplains for the galley slaves, or when its own catholic military orders used them.
teachings of the Bible are so muddled and self-contradictory that it was possible for Christians to happily burn heretics alive for five long centuries. It was even possible for the most venerated patriarchs of the Church, like St. Augustine and St. Thomas Aquinas, to conclude that heretics should be tortured (Augustine) or killed outright (Aquinas). Martin Luther and John Calvin advocated the wholesale murder of heretics, apostates, Jews, and witches. - Sam Harris, "Letter To A Christian Nation"
