Hang on - I'm a teacher, female, & I frequently get called 'sir' (or indeed 'mum') by absent minded students. Am I now entitled to start shouting 'IT'S MA'AM!' & generally going full Hulk smash, then? That could be fun.
Come to that, my housekeeper, whose first language is not English, quite often comes out with sentences like: 'Your friend Miss Bicky I feed him cat because he sick' & I generally only worry about whether it's Victoria, Rebecca - or one of their cats, for that matter - who is ill.
Clearly I should be taking her to task for moggy misgendering. Although, to be fair, I'm basing my TERFy assumptions about Vicky's cat on the fact that she recently had kittens. She might well identify as a trans tomcat for all I know.
It's all just such...total bollocks.