I know there's a thread already on PC Goody Julie, but this one reply on twitter resonated with me and I felt it deserved it's own thread...
twitter.com/amydyess/status/1184570753116598272?s=21
She's right imo - the general 'you' don't assume Jeremy Corbyn needs to state his preferred pronouns, but for someone who looks a bit "other" it is asked much more frequently and can be read as a very subtle (or not so subtle) insult that they aren't just different, they're "wrong".
I have been asked. Luckily by someone that I'm close enough to that I went into a bit of a rant on the subject (though you'd think being that close they'd know if I preferred anything other than my expected pronouns). Even then, it made me wonder wtf was wrong with me that such a question was asked.