A real Dub answer would be something like: ...
"Don't you know that the discipline of the disfellowshipping arrangement is an expression of love to the sinner? Tough love maybe , but love nonetheless . It hurts the shunner to have to ignore his former friend or family member. We do it to get them back among us, repentant and in a good relationship with Jehovah"
..........
There you are , isn't that what they would say?