But the only problem that I foresee is someone pulling out the LGBT card when they should be fired for non-LGBT related issues. I know at work theres this trans-girl who is terrible at her job, no one likes working with her. She doesn't get along with anyone. Very abrasive. Yells at ancillary staff at the hospital including nurses, techs, etc. Calls in sick for bullshit reasons (which means the work is dumped on someone else). Just a bad human being overall. But admin is scared to do anything to her because shes trans. And she has been overheard before talking about how she "feels people treat her differently because shes trans" and how it causes her emotional stress.
They still have to prove that the reason for firing is related to discrimination. No different than with anything related to sex, gender, or race.
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Shooing away pigeons crapping on debate tables is not a violation of the pigeons' free speech.