>>515440649 (OP)
To these people, who have invested so much passion, energy, and emotion into leftism, it is akin to murder to challenge their views and prove them wrong. Without their the virtue of their ideology, they have nothing to ground themselves. That infamous circle graph shows that these people are estranged from all close personal ties, live in impersonal urban landscapes, and are uncomfortable with the idea of just being a "unit" in the cog of the machine. They need something to feel and progressive ideology gives them the emotional dopamine hit they need to not completely implode. This is why they react with hysteria when challenged, it's literally all they have. Like trauma-ridden children whose family was killed in a car accident they had to witness, except their family is still very much alive and waiting for them. They killed their own bonds of kinship and family and are left with nothing, perfect rootless units to be exploited.
This is why they scream and cry when they're challenged, even if their ideology is patently poisonous and dangerous.
This is the power of demoralization.