We don’t live in a theocracy, our founders were no fools. As a Christian if a gay person came into my bakery for a wedding cake, I would make sure that it was baked and decorated to the best of my ability. I would be sure to give a heaping measure while bearing in mind that my Father in heaven makes it rain on the just and unjust alike. My job is to be a good witness, not a part of a pitchfork and torch wielding mob. You never know how God will use you to further His kingdom.