The dog has a lot to do with it! The new LP is called Mio fratello è figlio unico (My Brother Is an Only Child), and I think nothing expresses the concept of being marginalized and excluded better than a dog.
That is, the dog is the epitome of loneliness. The point is basically that we are all poor dogs, quite detached from human contact and quite lonely...
That is, we are basically quite isolated from each other.