Michael Shellenberger discusses the euphemistic treadmill:

We stopped calling it psychopathy → now it’s “antisocial personality disorder” (DSM-5 change).

Why? Because the old word became “politically incorrect.”

Same pattern everywhere:
“Retarded” → “developmentally delayed” → new term needed soon
“Addict” → “person with substance use disorder”
“Mentally ill” → “person with mental health challenges”

It’s not about kindness.
It’s about control.
The people pushing these changes don’t actually care about the feelings of those they claim to protect — they care about gaining power in the conversation.