They'll torture children, kill civilians, destroy economies and jobs, lose territory, violate every nationalist, and saying "shame" won't work.
Since it posits a grand purpose, and unimaginable Utopia, it is rewarded on effort, not the reality of failure.
This is why centrist positions have no impact except to validate, normalise those who demand unequal treatment.
The cult won't change its mind with better facts or information.
Those that understand a "common humanity" are the target audience, not cultists.
They have set themselves outside common humanity, listen to them, and treat them as such.