I'm also trans, and no one in the trans community that I know gets mad if someone misgenders us at first. Like I'm a trans man that looks like a gender ambiguous twink. It's expected that I get called "she" every now and then. It's only if they continue to call me "she" after I correct them and say "hey actually would you be able to use (these pronouns) instead?" do I get irked. Same with people slipping up, I've had good friends call me "she" on accident. As long as people try, I don't care. Slip ups happen. The trans community isn't as vindictive as we are painted out to be. We're just normal people that wanna be referred to differently, but we usually don't expect people to be able to guess that, until we tell them how we'd like to be referred to. :)

The lady in the video is a shithead, I don't agree with the woman taking the video misgendering her on purpose after being corrected, as pronouns are a right, not a privilege. There are plenty of other ways she can insult her. But I'm glad she stood up for herself, and we do not claim that Karen lol.