Pope Francis is an enabler. If he were a real Christian leader he would tell Mexico what they were doing wrong so that they could correct their problems instead of invading another country to improve their lot.
I'm not going to go so far as to say the man is not a "real" Christian, but lacking expressing acknowledgement of the problems which have led millions of people to immigrate from Mexico to the United States, it is disingenuous to "posture" as he has (can be seen to have) in alignment with argumentative that individuals not born of U.S. citizens, or else simply born within the boundaries of the Unites States, have any natural "right" to enter into and inhabit the United States which needs to be afforded them by the United States.