I went to YouTube and watched the video. Some observations:
1. Lots of guys are reposting it in a pathetic effort to gain or drive web traffic.
2. She looks like the real deal. (She has long hair, no beard shadow and breasts and facial contours appear to indicate some HRT)
3. Having a public meltdown over being misgendered and doing it on video makes us all look bad.
4. Maybe she was low on hormones, or just had a bad day, or may have a comorbid autism condition or mental health condition.
5. Maybe she was set up. The timing of the video is suspicious.
I am really sorry this happened. But, this is how it is. The young women who work at my favorite gas station still call me "sir" but they knew me before transition, they are friendly, and there is no malice in it. I'm not going to trouble myself trying to correct them; there is nothing to be gained by it.
I've been intentionally misgendered twice, both times by tall, macho looking middle aged men. I don't go looking for fights. It happens, it sucks, but if you want to win a war, you choose your battles. And if you want to win a war for acceptance, you learn diplomacy.
Hugs, Carly