There is no fact-based evidence for this exclusion.  The overwhelming majority of scientific studies on this issue have convincingly shown that children raised by gay couples are certainly not worse off than those raised by straight parents1. Some studies have gone as far as to demand that in the face of this evidence, gay bans be ended2. Based on the robust nature of the evidence available, the courts in Florida were satisfied in 2010 that the issue is beyond dispute and they struck down the ban3. When there isn't any scientific evidence to support the differential treatment of one group, it is only based on prejudice and bigotry, which should have no place in a democratic society.  1 Carey, Benedict. "Experts Dispute Bush on Gay-Adoption Issue". New York Times. 29 January 2005. (accessed 2 August 2011).  2 Wikipeida. "LGBT adoption status around the world" .(accessed 2 August 2011).  3 Foster Care 1999 Statistics. Adoption.com .(accessed 2 August 2011).