It's pretty simple, really.
The ape connotation was used in the past to justify slavery as an institution and carried a fundamental view that blacks were less than human. This led to things like widespread rape (yes, of children), violence, dismemberment, and treating an entire race of people like animals because there was an attempt to scientifically paint them as being little more than 'apes'.
Wishing for a child to be gang raped is terrible, of course, but echoing sentiments of a worldview that enabled widespread rape on the basis that it was actually seen as "ok" is going to carry a bigger stigma due to scale.
If you think liberalism is a mental disorder, perhaps you'd be more comfortable is a sans-liberal conservative environment such as North Korea or Saudi Arabia. The very freedoms/society you enjoy stem from liberalism.
@IngaVovchanchyn I'm seriously disappointed that you liked a post that makes such a generalized, absolutist statement about 'liberalism' - I always pegged you as a conservative, but at least being somewhat reasonable - this just reeks of the blind tribalism that you just got done accusing JVS of.