For trans people, I'll gladly address a trans woman with female pronouns and vice versa for trans men and apologize profusely if I ever misgender them. But if someone has some made-up gender with made-up pronouns, I'm not doing that. The furthest I'll go is they/them pronouns, but I am not referring to someone as "ze" or "ge" or whatever. Some argue that the number of people who are like that is incredibly small and that's reason to respect that. But if you ask me, how few there are is reason why they shouldn't be accommodated.
I'm a huge supporter of transgender rights and always will be, but even I have my limits and quite frankly, I find so-called trans people who identify with made-up genders and pronouns detrimental to the transgender rights movement.