It's so hard to understand the person who can choose an ideology over their own children. Maybe some are attracted to this idea. That's why they join in the first place... Then they can give their ultimate allegiance to a god they cannot see, touch or talk to instead of having to reallly love an actual human.
As far as the GB getting smoked, I don't wish for that, but if it happened I wouldn't be shocked or saddened. The utter lack of humanity these men have demonstrated is reason enough for anyone to hate them.