In short, the crusades were catalytic to long-distance trade that created the need for surplus production (transitioning from subsistence agriculture and local trade, to international trade) thereby giving an impetus to the market economy, on the one hand, and at the same time linking long distance trade to colonialism (always in the name of Jesus), on the other. Capitalism and colonialism have a symbiosis, although surplus trade was also symptomatic of rising population that accounted for urbanization that gave birth the urban-based economy in the long 16th century (1450-1650), as Immanuel Wallerstein calls it, when Europe experienced social discontinuity - transition from the feudal manorial societal structure that the land-based nobility dominated to the modern capitalist one that merchants began to control as the hegemonic class.
After 9/11, the Muslims I knew were extremely cautious about freely expressing their views, they feared about their jobs, they felt that they were the new target of a white-dominated society that had relegated them to second-class citizens. In short, they felt that the crusading mentality affected their daily lives, and no matter how conformist to the institutional mainstream, at the end of the day they were part of a community against which the West was perpetually at war. Could the 'crusading' mindset be any more real today than it was during the crusades, even more so owing to the multi-ethnic make up of Western societies?