Christians and Muslims in Cairo protest against the anti Islamic movie In Egypt.

 Poor Copts; Muslims are bent of driving them from their ancestral home so while they may march and protest insults they are the target or organized  similar Muslim aggression to drive them out our shut them down. They are there merely to mediate their own fear of being the targets of the same kind of senseless fury. Actually, I would be surprised if they were not there. 

Storm is correct.

To be vex? Yes, because it opposes his theory.

 I do not have a theory. Use your google fu and see the reality  what Copts fear the most presently. Examine the oppressive fury they are forced to endure because of fundamentalist Muslim intolerance. These people were here from the time of Abraham

Yes, and they travelled in 'copters.

I they were inhabitants of the land since that era not that they were Christians. In any event, Muslims claim Abraham was Muslim so there you go.