I'm afraid it is ridiculous to say that Christian minorities are not being specifically persecuted. That catholic church in Peshawar where 85 massgoers were killed and a couple of hundred injured wasn't targeted at random. And in Syria Christians are being specifically targeted. So are other religious minorities. As was the case in Iraq, the oppressive regime under attack is seen as having been less oppressive towards such minorities.

Specifically does not mean exclusively. It does not even mean in greaser numbers. If someone was to say that gypsies in Nazi Europe were not specifically targeted on the grounds that most of those murdered were Jews they would rightly be ridiculed.

In places as far apart as Pakistan and Nigeria Christian minorities are being directly and specifically targeted. Real people murdered in sizeable numbers.   And of course its true that other people are being murdered for being in a minority. But nobody has sought to deny that, still less to say that they "deserve it" because of faults of their coreligionists on the other side of the world.