The secular world refuses to accept that we are in a spiritual battle of good vs. evil. They, in their relativistic and politically correct mindset, can't accept that one side is completely wrong. In their blindness, they find all sorts of ways to spin the truth.
This love theme the pope is on is some super heavy duty stuff. It would be very meritorious for eternal salvation were we to integrate the pope's teachings into our minds and wills. He is saying something he thinks is very important.