Non-binary lives are valid, trans women are women, trans men are men, trans rights are human rights.
I find it depressing that people will sign stuff because it sounds nice but is absolute nonsense.
• Non-binary lives are valid
What is a "valid life"? What might make a life "not valid"? Non-binary is a self-declared description. What is anyone else meant to do with that information apart from go "er, okay"?
• trans women are women
Factually false. If there were women they wouldn't need to transition to become women. Trans women want to be seen as women is true.
• trans men are men
Ditto in reverse.
• trans rights are human rights
All humans have human rights. What specific rights do trans people want that they don't have already?
It would be a really interesting exercise to ask people who signed that declaration to see if they can answer my questions.