That's another excellent point Mary...
I guess he would say that they do "love their ennemies" and that's why they are doing the shunning, because they love them so much they'd do anything to "save their lives" They really twist everything up in a crazy knot of non-sense.
My mother even told him of examples where the shunning policy destroyed families. Precise ones about grand-mothers who couldn't see their grand-children and the likes. He just closes up and answers that all those stories are made-up lies from apostates.