Whose hands are covered in blood? The humanists like Hitler, Mao, Stalin, Pol Pot, Planned Parenthood, you know, people who make comments like little Viking. Your understanding of history is lacking. For example, the Crusades were in response to the wholesale slaughter of Christian pilgrims visiting the Holy Land by Islamists. The Inquision claimed probably less than 50,000 lives (much lower than the killers mentioned above). The Salem Witch Trials claimed 24 lives. Let's say, Christians listed in your examples killed 500,000. By my list, humanists have murdered close to100 million.