The only thing it really says is that non-binary people are people who don't fit gender expectations(which would include most of us) and says that it's not about clothes.
But it doesn't explain anything on philosophical, ideological, biological, neurological level or even sociological level.
It takes some time to mention the negative perceptions of Non-binary people(some more grounded than others) which of course is important to acknowledge but ultimately I have no idea how or why I'm supposed to distinguish between a gender non-conforming person and a non-binary person.
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