Conversation so far:
What did Havelock Ellis write about sterilization?
Havelock Ellis was strongly opposed to the idea of castration for eugenic purposes.
Did Havelock Ellis write a book about sterilization?
In his publication The Sterilization of the Unfit, Havelock Ellis argued that even institutionalization could not guarantee the complete prevention of procreation between the unfit.
How did Havelock Ellis share his views on sterilization?

Question: Were his views controversial?
Self-contained rewrite: Were Havelock Ellis's views controversial?