There is a legitimate question based on the book of revelation that suggests there is a line beyond which refusing to allow a person the ability to buy and sell becomes ungodly.
That line is the refusal because you refuse to give your heart, strength, mind, and soul to anyone but God.
The reference in Revelation clearly suggests that it is the government dictating who may buy or sell and the criteria for which someone will be able to do business with such persons.
A private individual or company setting up its own criteria for whom it will hire or do business is the essence of Liberty. The Government dictating that criteria is the essence of tyranny.
It is interesting to see that there are a lot of freepers on this thread advocating for tyranny without even realizing it. They recommend the newbie sue the employer for establishing his own hiring parameters and not hiring him because he is a smoker.
Did you know that in California it is illegal for an employer to refuse to hire a man who comes to the interview dressed as a woman?