Appears they are attempting to incite the blue states and the red states against each other. A modern day civil war on our shores would serve their purposes well. They know we are divided here and they are attempting to capitalize on it. Propaganda deluxe with the Dims, peaceniks and liberal left media consistently playing right into their hands.
OPINION-SPECULATION: The jihadis seem to well educated as to who to appeal to in order to promote their ideas. Obviously, Christians, Jews, conservatives and other infidels just aren't their cup of tea.