There are several thousands of different religions in this world and one of all these is Christianity.
A religious Christian war has not occured for centuries as far as I can remember.
Politics has been responsible for many more wars and deaths. It that a proof positive that politics teaches hate?
Real religous wars
Crusades in the Holy Land Muslims and Christians 1095 - 1291
French war of religion between Protestants and Catholics France 1562 - 1598
Thirty year war between Protestants and Catholics 1618 - 1648
Lebanese Civil War Lebanon between Sinni Muslims, Shiites, Jews, Druze and Christians 1975 - 1990
2nd Sudan Civil War in Sudan 1983 - 2000 Muslim and Christians
The Croatian War (1991–95) and Bosnian War (1992–95), have been viewed of
as religious wars between the Orthodox, Catholic and Muslim populations of former Yugoslavia, that is, Serbs, Croats and Bosniaks.
Think about all the none religous wars which have occured. WWI and WWII
all the wars within Europe which had nothing to do with religion.
Religion does not teach nor preach hate as a rule. On the contrary Christianity teaches to love and to care about others.