Remember that Amoris Laetitia is online in pdf format here. In engaging with the modern world, Pope Francis advocates neither retreat nor citing rules:
35. As Christians, we can hardly stop advocating marriage simply to avoid countering contemporary sensibilities, or out of a desire to be fashionable or a sense of helplessness in the face of human and moral failings. We would be depriving the world of values that we can and must offer. It is true that there is no sense in simply decrying present-day evils, as if this could change things. Nor it is helpful to try to impose rules by sheer authority. What we need is a more responsible and generous effort to present the reasons and motivations for choosing marriage and the family, and in this way to help men and women better to respond to the grace that God offers them.
The question is: what does generous mean? My sense would be something that also runs counter to modern sensibilities: actually getting to know people outside of our safe circles of believing Catholics. Perhaps it is a mission mindset. The frustration is that it is also very slow work and may, ultimately prove unfruitful to our eyes.