'I want to caution you not to assume that you have fully solved the problem by the enactment of this law,' Lively wrote, according to the site BuzzFeed. 'Few political agendas in the history of mankind have marshaled the tenacity and resolve of the homosexualist movement.'
'Its activists are driven by an implacable militancy and a zeal to advance their own self-serving interests that rivals even the most fanatical religious cult,' he added.
This type of rhetoric is typical for the author of The Pink Swastika: Homosexuality in the Nazi Party. Originally published in 1995, the book maintains gays were major players in Hitler's inner circle and the engineers of the Holocaust.
The book's thesis has been debunked by countless historians.
This did not prevent Lively from emphasizing the discredited theories in his letter. The activist maintained that critics of Russia's laws were only trying to hide the roots of the gay equality movement.