You realize that the "Crusades" were a real timid reaction to the overly aggressiveness of islam imperialism invading europe as if it's made of butter, right? Right?
You have that kind of backwards, considering that in the area the Crusades were actually directed, Muslims did not invade Europe until after the last of the Crusades managed to wreck the remainder of the Byzantine Empire so badly that the Muslims got in. They were really a series of elaborate favors to the Patriarch of Constantinople from the Pope, which then misfired horribly because the Crusaders decided to ignore the Byzantine Empire as the local power that could have helped them hold what they took.
The situation in Spain and Portugal was something that does not appear to have factored into the process that lead to the Crusades.
Sicily, a stone's throw from Rome, was under the control of Muslim conquerors until a mere twenty-some years before the First Crusade was called. Europe had been attacked plenty of times, they simply never gained a mainland foothold outside Spain and their attempts at pushing into France were defeated by Martel.
