1956: Edmund Bergler, "Homosexuality: Disease or Way of Life"

In the preface to his book, psychoanalist Edmund Bergler says:

"It is granted that heterosexuality per se does not guarantee emotional health.... But there also exist healthy heterosexuals, and there are no healthy homosexuals...."

His text adds:

"Homosexuals display an amount of irrational and violent jealousy unparalleled in heterosexual relationships." (Page  25).

Edmund Bergler. Homosexuality: Disease or Way of Life. Publisher: Hill and Wang. First Edition edition 1956. ASIN: B0000CPF04. 302 pages.