White. Armed. Hostile. Genocidal. Self-centred philosophy. Ethnicity is the important factor, Ok. I will have to disagree with that. Crusaders wanted to "recapture" the "Holy Land", this was the problem at the centre of the dispute. Sorry, but I fail to see how race becomes a dominant factor.
Of course I will demonize it, ethnic or racial discrimination is stupid. It has been a source of evil in the past, millions or billions of people were slaughtered. Thousands still die today because of it today, and there is no evidence that it is useful. Beyond weak conjecture. A bunch of feudal kings and their pope decide to slaughter people to claim their territory, and you would think it prudent to kill any European ... discrimination is a stupid policy.