Obviously you’ve never read first hand accounts of camp inmates during the Holocaust - kids being marched into gas chambers and burned in huge stacks. Over a million and a half children under the age of 17 were slaughtered. It takes some kind of insensitive person to see any humor in that picture.
One of the worst things about society currently is that so many people, young people especially lack any sense of the sacred. Nothing is off-limits to cynicism and caustic jokery.