The author of this post has suggested that autism and mutism are defects.
“Extremism” sounds like an ideology, by analogy with Marxism for example; or possibly it’s more akin to a behavioural state like mutism or autism - a kind of pathology or defect.
Might I remind the rest of the community that this is offensive to many of us. In fact, Greta Thunberg has said that ASD is her "super power".
The OP has been warned by none other than diamond star user (Mod) Andrew Leach that the question must be edited.
I concur with Cascabel. While I hesitate at the 100-rep penalty, you must edit this question.
So far, that has not happened. Can we please edit, or close / delete this post?