"Legalizing same-sex marriage will affect a wide spectrum of government activities and policies. Once a state government declares that same-sex unions are a civil right, those governments almost certainly will enforce a wide variety of other policies intended to ensure that there is no discrimination against same-sex couples. This may well place “church and state on a collision course.”[16]
The prospect of same-sex marriage has already spawned legal collisions with the rights of free speech and of action based on religious beliefs. For example, advocates and government officials in certain states already are challenging the long-held right of religious adoption agencies to follow their religious beliefs and only place children in homes with both a mother and a father. As a result, Catholic Charities in Boston has stopped offering adoption services.
Other advocates of same-sex marriage are suggesting that tax exemptions and benefits be withdrawn from any religious organization that does not embrace same-sex unions.[17] Public accommodation laws are already being used as leverage in an attempt to force religious organizations to allow marriage celebrations or receptions in religious facilities that are otherwise open to the public. Accrediting organizations in some instances are asserting pressure on religious schools and universities to provide married housing for same-sex couples. Student religious organizations are being told by some universities that they may lose their campus recognition and benefits if they exclude same-sex couples from club membership.[18]
Many of these examples have already become the legal reality in several nations of the European Union, and the European Parliament has recommended that laws guaranteeing and protecting the rights of same-sex couples be made uniform across the EU.[19] Thus, if same-sex marriage becomes a recognized civil right, there will be substantial conflicts with religious freedom. And in some important areas, religious freedom may be diminished. "
http://www.protectmarriage.com/
Excellent reply. Thank you.