It can be done, there are many accounts where it has worked.
It's a very complex thing and I don't think it's possible to do without the religious aspect. There is a an exgay community out there but it appears that vested interests aren't as tolerant and inclusive and diverse as they seem to be.
American Library Association Asked to Condemn Banning of Ex-Gay Books
West Bend, WI — Despite public opposition, the West Bend Community Memorial Library continues to stock gay books for children and teens while neglecting books by ex-gay authors.
Many of the gay books promote homosexual behavior to youth and are the subject of protests by concerned parents, whose request to have the books moved to the adult section were denied.
“Our requests that the Library balance some of its homosexual material for children with material written by ex-gays or with a heterosexual slant have been ignored,” said Regina Griggs, executive director of Parents and Friends of Ex-Gays & Gays (PFOX).
“Apparently, the West Bend Community Memorial Library is not interested in diversity,” said Griggs. “We urge Michael Tyree, the library’s director, to be inclusive of the ex-gay community and accept our donation of ex-gay books. According to its own policy, the Library has a ‘professional responsibility to be inclusive, not exclusive, in developing collections.’”
“For a library to provide children’s books which promote homosexuality while denying ex-gay books smacks of censorship and indoctrination of youth with a one-sided ideology,” said Griggs.
“It is also contrary to the American Library Association’s policy against book banning and censorship in any form,” said Griggs. “We call upon Deborah Caldwell-Stone, acting director of the American Library Association’s Office for Intellectual Freedom, to publicly condemn the censoring of ex-gay books in any community. Public libraries should be for everyone.”