YOU are not making sense.

I understand the effect I as a player have on the game and my surroundings, but when I recently played as the Volga Bulgars (muslim faction) my sole aim was to take christian lands only. I supported my brothers to the south and never attacked them even when they asked for it. But after a few crusades the turks done for and the eggies little better off. In that time I never saw one jihad from anyone but myself (its a good campaign I'll post a screen shot).

Overall what I'm saying is Yes to all can crusade but, 1 year Jihad Build time and half the cost of them.