Too bad that there are people in the world that are not peaceful, loving Christians.
In 16th Century France there was a succession of wars between Roman Catholics and Protestants (Hugenots primarily), known as the French Wars of Religion. In the first half of the 17th century, the German states, Scandinavia (Sweden, primarily) and Poland were beset by religious warfare in the Thirty Years War. Roman Catholicism and Protestantism figured in the opposing sides of this conflict, though Catholic France did take the side of the Protestants but purely for political reasons.
In the Middle Ages, religion played a major role in driving antisemitism. Though not part of Roman Catholic dogma, many Christians, including members of the clergy, have held the Jewish people collectively responsible for killing Jesus. According to this interpretation, both the Jews present at Jesusâ death and the Jewish people collectively and for all time, have committed the sin of deicide, or God-killing. For 1900 years of Christian-Jewish history, the charge of deicide ( Which was originally attributed by Melito of Sardis ) has led to hatred, violence against and murder of Jews in Europe and America."[31] This accusation was repudiated in 1964, when the Catholic Church under Pope Paul VI issued the document Nostra Aetate as a part of Vatican II. Martin Luther, an Augustinian monk and an ecclesiastical reformer whose teachings inspired the Reformation, wrote antagonistically about Jews in his book On the Jews and their Lies, which describes the Jews in extremely harsh terms, excoriates them, and provides detailed recommendations for a pogrom against them and their permanent oppression and/or expulsion.