Not familiar with the story, but from the text it follows that it was the company's landlord that was discriminating. Typically, in cases like this, conflict revolves around bathroom use and exclusion due to gender assignment/reassignment.
That's illegal in Dallas.
I think that if, as a society, we decide that gender access to restrooms is not based on physical gender but instead based on how you self-identify -- then as society we should completely eliminate the separation of bathrooms for males and females.
Agree or disagree?
Interestingly, a local university (Uvic) has gender non-specific public washrooms. The kind with 4-5 stalls and sinks. Everyone welcome.