Blood Libel?

You bet!
http://en.wikipedia.org/wiki/Pussy_Riot
The commotion surrounding the Pussy riot sentence took a disturbing turn on August 30, 2012, when the bodies of two murdered women, mother and daughter, were found in Kazan, Tartarstan, with a message, “Free! Pussy Riot” written in capital letters in English on the wall of the apartment, using the victims’ blood.
Igor Danilevsky, a 38-year-old professor at a Kazan university, confessed to the killings and was detained.

Must I remind you that "-sky" surnames aint Russian? Neither are surnames Tolokonnikova and Samutsevich.

So what is wrong with eliminating the "minority"?

For example, being afraid of the dark because fearing unknown beings inside it is self-destructive but it generally doesn't change noticeably how you interact with others.
Ask any parent and they'll tell you amusing anecdotes about nightlights and how their child behaved.  Fear of the dark does change how a person behaves; it's self-destructiveness is low because children - the typical afflicted - don't have much leeway with night activities when they're that young.  How about the claustrophobic for a contrast?  perfectly fine people for the most part, with their normal range of quirks and dysfunctions and friendliness.  Nothing abnormal about them or how they interact with other people most of the time.  Put them into a small space and watch them melt down for no discernible reason.  And they can only seldom be purely talked down from it.

What about "imaginary friends," another thing common to young children?  I would say it's only as destructive as one put their dependency on it or take it to its extremes.  If other people are denied in favor of these mental constructs or causation of schizophrenic behavior or responsibility dissociation, then it would count as highly self-destructive; as a tool for imagination, self-encouragement, time-management (ever played Chess against yourself?), or even empathy, it is not unhealthy.  People continue to do it in modified measure throughout their life, even if they no longer recognize it as that or lay their reliance upon it.

As for the belief in God, what application of that belief is so destructive that necessitates the disbelief in God to work around it, that could not also be solved by removing an abuse of the belief?  By way of example, Creationism, which you probably would characterize as destructive.  Creationism requires belief in God, but belief in God doesn't require Creationism.  Shall we remove Darwin to get rid of the excesses and malicious behavior associated with Social Darwinism?