Conversation so far:
Was Havelock Ellis for or against sterilization?
Ellis was strongly opposed to the idea of castration for eugenic purposes.
Did he hae another motion in mind?
he posited that the sexual glands provided an important source of internal secretions vital for the functioning of the organism, and thus their removal could greatly injure the patient.
Why did he believe that?
His view on the origin of these inclinations was that sexual impulses do not reside in the sexual organs, but rather they persist in the brain.
Was there any controversy on his view?
CANNOTANSWER.
Are there any other interesting aspects about this article?
he supported adding ideas about eugenics and birth control to the education system in order to restructure society, and to promote social hygiene.
What form of birth control did he support?
For Ellis, sterilization seemed to be the only eugenic instrument that could be used on the mentally unfit.

Question: How was one deemed unfit?
Self-contained rewrite: How was a patient deemed mentally unfit by Havelock Ellis?