Legally mandating the allowance of any kind of discrimination based on something as fluid and open-ended as a personal religious belief is not only wrong on every level, it opens the door to all sorts of discrimination in the name of Jesus.
If you refuse to give me and my husband a marriage license -- or sell us a cake or take our photos -- then you are infringing on our right to be treated equally as United States citizens. We are not infringing on your rights. Yours are still intact. Ours are being denied.