It’s not someone insisting that their pronouns are goddess. It’s someone insisting that Their pronouns are capitalised. If transphobes are going to attack random people for existing, they should at least put in the bare minimum effort to be factually correct. Otherwise they deserve to be laughed at and called stupid liars.
You’re a transphobe because you lied, and you’re a transphobe because you’re currently misgendering a trans person. You’re committing acts of violence out of hatred for people different than you.