"There are federal laws that protect against workplace discrimination based on race, sex, national origin, age, religion, pregnancy status, and disability. Unfortunately, there is currently no federal statute prohibiting private sector sexual orientation discrimination in the workplace. However, if you work for the federal government, you are protected from sexual orientation discrimination. Several proposals to enact a law protecting employees from sexual orientation discrimination have been considered, with no success in them being passed. "
i took that from the link you provided self-sain