Generic fundamentalism
There isn't the slightest doubt in my mind that a political movement ready to prostitute itself by courting the Christian fundamentalists would have no problem entering into an alliance with Islamic Jihadists, if the payoff was right and if they could get away with it.
Sure, it can be argued that waging war on science isn't as disruptive to business as flying airliners into office buildings, but the Jihadis do have access to petroleum...