100% the parents fault. PeriodNo.
The MSM and social media raised these kids. Told them that anything they did or thought or said was fine as long as it didn't physically harm someone else.
Parents fought back on that and were told they were cruel and abusive and were summarily shamed and would be contacted by child protective services and lawyers and every other yo-yo.
Dr. Spock raised these kids when he said parents were too hard on kids. And that parents should not be stern or discipline their kids with punishment because it was mean.