The long-standing tension between religious beliefs and the idea of same-sex marriage has been a key factor at play behind recently proposed bills in several states, most visibly in Arizona, aimed at protecting business owners who have religious objections to same-sex marriage. At the same time, however, new Pew Research Center data from 2014 show that just within the past year, growing shares of some Christian groups favor allowing gay and lesbian couples to marry.
Notable is increasing support from White Mainline Protestants and Catholics, who are both around 60% supportive. Black Protestants are also increasing. White evangelicals? Not so much. But why is our freedom to marry dictated by a minority religious group that accounts for maybe 20% of the US? "Unaffiliated" is also around 20% of the US population.