 A Hindu and a Buddhist are getting married by a judge. Can I go to that? Yes, you can. You can enjoy, participate because the church teaches that marriage is a natural right and it's a natural institution established by God before any religion. So it's not a religious issue per se. And two Protestants can be validly married or a Protestant and a Hindu can be validly married. It wouldn't be a sacrament, but they can be validly married.