Film and TV - unless it's sci-fi - reflects reality.
Physically men do not look like Emma. This is kind of a problem for a looks based industry.
In terms of reflecting reality, it's also a bit of a non starter for a non-binary. If you want to go down the non-binary root, you also rule out anything period especially since there's no non-binaries over about 30. And even then there's very few contemporary non binaries in every day positions such as police, law, etc which are what so many dramas are based on. So in terms of reflecting reality, you are shit out of luck there too.
And I don't know that's going to change a huge deal tbh. Why? Because if you are non binary spouting nonsense and demanding loudly, it may not help to further your career. Especially if you are a non-binary of the female type. The other type of non-binary tends to do better at getting results from the foot stamping approach.
Maybe she should look for alternative careers as a fisherthem, a policethem or spacethem instead?
Lord almighty, do you have to be areabetweentheears challenged to be non-binary?
Specsavers really need to get in on the non binary market. It looks like a potential gold mine here.