For those watching at home, some useful tips on how to support trans rights: Don't derail discourse about bigotry to demand minority groups explain to you where the bigotry was. Especially don't do it if you aren't prepared to take them in good faith and believe them when they answer.
Under no circumstances do we recommend scolding them when they either don't immediately trust your "pics or it didn't happen" questions are genuine or fail to go out of their way to bring you receipts so you can graciously bestow your allyship to them.
Oh, and as a general rule, if, like, five trans people are getting more and more pissed with you, there's a decent chance you aren't doing a great job of advocating for their rights.
EDIT: Oh, and obviously, please don't demand we "prove" you're transphobic by pointing to a specific instance when the whole technique of dogwhistles and coded bigotry depends on no one post being identifiably bigoted without copious context. Maybe consider why we're getting so uncomfortable around you and reexamine your approach from a place of humility.