Several reasons.
Saw this crusade as a blessing from God.
Christians would stop fighting themselves.
Christians that would fight would go to heaven or be right with God.
To take back the holy lands, from the Muslims would be a righteous cause.
The Greco-Persian Wars were two conflicts that occurred between 490 and 479 BCE and pitted the Persian Empire against the Greek city-states. The conflict began after Athens and Eretria gave assistance to the Ionians in their rebellion against Persia and its ruler, Darius. (got the answer from google hehe)
The correct answer here is women.
This means that there are a lot of women who are supporters of the Democratic party and it is not hard to see why. Nowadays, the Democratic party is seen as a liberal choice and the liberal party while the Republican party is seen as a more conservative and traditional party.