L take
Non-discrimination is a fundamental human right. Trans people are heavily discriminated against, often being denied employment and housing on the grounds of their identity. In America, the 1994 Employment Non-Discrimination Act does not protect transgender people.
There are several more examples, take a stroll through google yourself.
Non-discrimination is not a fundamental human right. There is no such thing as inherent positive human rights. Trans people have the right to not have their rights taken away. That includes things like taking their ability to move freely, speak freely, believe freely, Forcing someone to provide you with housing if they don't want to is not a right. Forcing someone to give you a job when they don't want to is not a right. If someone can refuse to provide me housing because they don't like my face, that's their right. If someone can refuse to provide me housing because they don't like that I'm trans, that's their right. I don't have to like it. I can say it's unfair (it is unfair), but that's that person's right.
Non-discrimination is not a human right. Non-aggression is. But you should be able to say no to someone demanding your services for any reason you want whatsoever. I am aware the current laws don't totally reflect that and actually allow certain groups to force services from others. But I'm saying when you get deeper into the logic and philosophy behind it, it is wrong to - by threat of force - force anyone to provide a service for someone else on any basis of any kind. You simply should not be able to force a service or good from someone that does not want to provide it. They do not need a reason.