text: Wrong comparison. Violent conquest of lands and people is a human universal not dependent on religion. You are judging the past by contemporary standards.
  
  It is the spread of the western notions of democracy (i.e. the land belongs to its inhabitants, not its rulers, so cannot be conquered or bartered the way land was by the French, British and Spanish) and human rights and dignity, etc., that made territorial conquest morally unacceptable.
  
  Massacres of populations was widespread throughout history, religion or not.
  
  The Japanese had no qualms about massacring and torturing the handful of Christian missionaries and converts in the 17th century. That was religious persecution on the basis of religion.