Your point was, could one person stop it. Anyway, if they are going to target ALL non muslims then I'll go further and say that in 20 years all people in the third world and the middle east will be muslims, albeit under sufferance in most cases.Not coy. Reading your posts makes it sound that being Christian was the main reason they were killed, when I do not believe it was.
The reason for this attack, in my view, was mainly because it was a soft target in a country at war with al-shabab, the fact that they did not then kill muslims (or claim to have not even though we do not know exactly who was killed yet) was secondary. The thinking was not "let's go and kill some christians" but "let's go and attack a target in a country fighting us, but whilst we are there we had better not kill Muslims as that will not help our cause".
You posted earlier in the thread that countries will turn atheist, presumably as some sort of reason not to be attacked, but we know that this will not help in the slightest.
Your interpretation of my statement meaning that one person could have stopped it is not something that I said at all. My point was more that they killed non-Muslims, not necessarily Christians.