It has begun in Massachusetts.
A Christan gentleman was fired from his job for stating his belief that homosexuality is wrong after being repeatedly pressed on the topic by a manager from another store on the announcement that she was going to "marry her fiance", another woman.
According to the HR department of his company his beliefs amounted to harassment.
You can read the story here.
I agree with this gentleman. If homosexual marriage is passed in more states anyone who feels as though homosexuality is morally wrong will face the dilemma of keeping silent or facing the loss of their job for stating their personal belief.
So much for tolerance, apparently it only goes one way. Keep your job by keeping your beliefs to yourself.
John 15: 18-19