Here you go again, bringing up the past when you can't find a reasonable rebuttal. Germans killed French, French killed West Africans, Turks killed Armenians, Jews killed Palestinians, Palestinians killed Jews, Hindus/Sikhs killed Muslims, Muslims killed Hindus/Sikhs . Everyone killed someone at some point.
How is that relevant? 

Germans don't blow up French people these days. Is today we are dealing with not WWI,WWII or colonial India.