In your example you've managed to inadventantly weaken Title VII, not strengthen it. Because "beyong an individual's control" would become a major legal fight,

In your example you've managed to inadventantly weaken Title VII, not strengthen it. Because "beyong an individual's control" would become a major legal fight, for example many, even in scientific literature, thought being LGBT was "within someone's control" as recently as into the 1970s, and certainly marrying someone of the same sex or changing your gender is "within someone's control" today. So you've taken Title VII and cuts its legs out under the gies of making it more expansive. Plus "not relevant otherwise" would likely allow much more gender descrimination than the existing Title VII does.