... Over the last decade, though, the debate has shifted from one between religious and non-religious Americans to one that primarily pits older, conservative Christians against moderate, progressive, or younger Christians, Jews, and the religiously unaffiliated.
Today, there are religious groups on both sides of the same-sex marriage debate. Public Religion Research Institute’s American Values Atlas—based on 40,000 interviews—shows some striking realignments over the last decade. A number of major religious groups have joined the unaffiliated in supporting same-sex marriage. In addition to the more than three-quarters of the religiously unaffiliated who support same-sex marriage, 84 percent of Buddhists, 77 percent of Jews, approximately six in ten white mainline Protestants (62 percent), white Catholics (61 percent) and Hispanic Catholics (60 percent), and 56 percent of Eastern Orthodox Christians now support allowing gay and lesbian couples to marry legally. ...