1. There is a liberal desire for "favored groups" to be allowed to discriminate because it is part of their nature. So how hard do you push?
2. This is not a religious issue. It's a preference against same-sex marriage, not a specific rule per se. Religious rules are not laws. For instance, prayer is school is a speech issue, not a religion issue. The media frames it as a religious issue was a way to demonize the "bad" religion.