People who are against the Crusades will argue that there is no guarantee that something will get accomplished. They would say that after years of fighting, the situation might not be any different than it is at the present time. Also, they would argue that a tremendous amount of people will most certainly die, and it would be better to try and work out some kind of deal than it would be to rush in and fight. These people would most probably argue that the Holy Land is full of riches and the Roman Catholic Church’s sole reason for attacking it is just to gain those riches.
Pope Urban II could have ulterior motives for calling on the Crusades, though. He knows that industry and trade greatly increase during times of war. If the Crusades happen, it could be very good for the economy, and he knows it. It is also good for the morale of the people in the Roman Catholic Church. If their soldiers win back the Holy Land from the Muslims, it would hugely increase the morale of the people. There should also be a question about his wanting to increase the power and prestige of the Church. While he could say that it is to more easily spread the word of God, it could just be a power-hungry man wanting as much control as he can have. Also, even though Christians do want to recapture the Holy Land