No.
Yeshiva is being sued under a state law that prohibits discrimination against the LGBT crowd. There are other state and federal laws that prohibit even private sector discrimination on the basis of race, gender, religion, national origin, etc..
However, political viewpoint discrimination by private employers is not prohibited by federal law, nor by most states. So legally, you can generally be discriminated against because of your political beliefs unless you work for a public employer.
There’s an irony here. Francis Collins, the man who mapped the human genome, concluded that the heritability (propensity) for homosexuality was 30% — not statistically significant. He also concluded that the heritability for traditionalism was 54%. Of course, the traditionalism of Orthodox Jews is rooted in upbringing. But based on Collins’s statistics, one could make a reasonable argument that traditionalism should trump homosexuality.