From OP:
"Is their right to refrain from participating in, recognizing or facilitating marriages between persons of the same sex, contrary to their religious convictions, adequately shielded by the First Amendment and other legal protections? Or is further legislation needed to guard religious liberties in these and other sensitive areas?"
My bold. They don't have to participate in or facilitate gay marriage, but everyone would have to recognise its legitimacy imho.
"Is their right to refrain from participating in, recognizing or facilitating marriages between persons of the same sex, contrary to their religious convictions, adequately shielded by the First Amendment and other legal protections? Or is further legislation needed to guard religious liberties in these and other sensitive areas?"
My bold. They don't have to participate in or facilitate gay marriage, but everyone would have to recognise its legitimacy imho.