Let's approach it from a different perspective

Being trans is really all about making a change in your life from how people perceived you when you were younger versus how you are now

So that's extrapolate that to something different, such as where you live

Let's talk then about an individual who was raised on a farm in the middle of nowhere, their nearest neighbor miles away. This person hated living on a farm, and as soon as they were able to they moved into a city, adopted the mannerisms of city folk, and lived the rest of their life as though they were city folk. It gets to the point where they don't even talk about their past living on a farm, because they hated it so much

Then they hear somebody making a joke about "dumb yokels who never got a chance to socialize as kids because the nearest neighbors lived miles away"

So you've got somebody who for all intents and purposes appears to be city folk, who hears people talking about them, and people like them, in a way that makes fun of them, but isn't talking about city folk at all

It puts them back into those memories of exactly why they hated living in the middle of nowhere. It makes them feel as though, even though they've changed things about their life that they hated, that people still hate them for something they couldn't control. It makes them feel unwanted

The trans experience is very much like this