"Refusing to accept the identity of trans people is mean."
I disagree. Robustly, which MNHQ has allowed.
Stating your identity is your prerogative.
Rejecting it, deeming it false, insulting, disingenuous, appropriative, not grounded in fact, failing to meet any credible criteria, deliberately provocative and unworthy of respect or any other judgement is mine. Hypothetically.
I am not honour bound to respect or validate your identity if I judge it not to be worthy of my respect.
If you identified as a flat-earther I'd not respect that identity as especially worthy.
If you identified as a labour supporter whilst being a fully paid up member of the tories I'd consider you a liar.
If you identified as a scientist whilst lobbying for creationism to be part of the science curriculum I'd challenge your credentials.
And YOU enjoy EXACTLY the same right regarding any identity I might state.
We do not have to respect each other's identities.
I am certain you would reject mine if it undermined your own.
We are free to reject each other's proclaimed identity because identity is a subjective feeling without any substantive criteria, and often contradicts reality.
What we cannot reject is objective fact.
A subjective feeling doesn't magically become fact merely because it has been spoken out loud.