Is this something that actually happens, in large? I'd be interested in studies that show this happens more. Meltdowns are far from a new thing in the world.
I mean, they make a nice narrative to shame people for overprotecting their kids. But this basically culminates in three of the major things that give me pause. a) Nice narrative, b) appealing argument without presented evidence, and c) shaming. Combine those and you typically have someone pushing or falling for an argument that has not been proven.
And yes, we all fall for those. All the time. I am not exempt.