Permissive laws, permissive behaviour 21 Oct 08

The research shows that legalising same-sex marriage will increase prevalence of homosexuality, says a psychologist
An accumulation of research from around the world finds that societies which endorse homosexual behavior increase the prevalence of homosexuality in those societies. The legalization of same-sex marriage—which is being considered by voters in several US states—is the ultimate in societal endorsement and will result in more individuals living a homosexual lifestyle.
Extensive research from Sweden, Finland, Denmark, and the United States reveals that homosexuality is primarily environmentally induced. Specifically, social and/or family factors, as well as permissive environments which affirm homosexuality, play major environmental roles in the development of homosexual behavior.

Social and cultural norms, as well as legal regulations, influence human behavior including sexual behavior. So not surprisingly, as the United States and other Western countries have become increasingly pro-homosexual—socially, politically, and legally—they have experienced an upward trend in the number of individuals engaging in homosexual behavior. That trend will continue if we move beyond mere tolerance of homosexual behavior (which is appropriate) to formally honoring it by legalizing same-sex marriage.