I think that's probably the most convoluted description of something I've ever seen. It would take many posts to unravel each and every one of the sentences in that description.
Non-binary, or genderqueer, is a spectrum of gender identities that are not exclusively masculine or feminine—identities that are outside the gender binary.
So it's a gender binary? So non-binary is not a gender, then, after all?
Non-binary identities can fall under the transgender umbrella, since many non-binary people identify with a gender that is different from their assigned sex
Hmm, so falling outside the gender binary as well as different from their "assigned" (sic) sex. But how could they have been assigned "non-binary sex", as such a thing does not exist. Clearly talking about two different things ere without acknowleding it.
but does not necessarily, as some intersex people are also non-binary.
Are they claiming intersex to be a sex? And why would "some intersex people" be non-binary, I shouldn't think (that is, if you believe in 'non-binary') that would need to be the case (as is more or less implied).
Non-binary people may identify as having two or more genders (being bigender or trigender);
Eh, what?
having no gender (agender, nongendered, genderless, genderfree or neutrois); moving between genders or having a fluctuating gender identity (genderfluid); being third gender or other-gendered (a category that includes those who do not place a name to their gender).
Gender identity is separate from sexual or romantic orientation,
Oh, we're getting somewhere!
and non-binary people have a variety of sexual orientations, just as cisgender people do.
Is that an acknowledgement of sexual orientation having something to do with, well, sex?
A non-binary gender is not associated with a specific gender expression, such as androgyny.
Oh, that's a new one for me, androgyny as a gender expression.
Non-binary people as a group have a wide variety of gender expressions, and some may reject gender "identities" altogether.
Which, in conclusion, shows it up for the bull it is.