"The leader of genius must have the ability to make different opponents appear as if they belonged to one category."
A. Hitler

So you agree and want to encourage the practice?

History only looks simple looked at from afar. It is a lot less so when looked at up close.
The history of the Western world is a complex one, not a unilinear one, with conflicts between factions of Christianity, between the Church and political rulers, between rulers and the ruled, etc., conflating it all into "the Christian world did this..." is rather simplistic. 

Every society has its social conflicts, there is nothing unique about that, we are just less familiar with those in other societies. What is dismaying is the glee with which some seem now intent on extracting some kind of vengeance for past sins from current populations, even anticipating the destruction of western culture as "just deserts." As if the alternative will necessarily be better.

But you are heard loud and clear.