So, today it's transgenders banned from the military, then it's gays, and women, and blacks, and latinos.... Where does it stop?

And it won't only be in the military. This article is about employee/employer relationship, in this case a sky diving instructor.

The Department of Justice has filed court papers arguing that a major federal civil rights law does not protect employees from discrimination based on sexual orientation in a case now being considered by a New York appeals court.

The department’s decision to file a brief in the case was a rare example of top officials in Washington weighing in on gay rights in what is an important but essentially private dispute between a worker and his boss. Civil rights advocates criticized the filing not only for its arguments, but also for having been made on the same day that President Trump announced on Twitter that transgender people would be banned from serving in the military.