That very few adults spend their time fretting about how people refer to them in the third person.
If you were regularly harassed by being called a gender that you aren’t after spending years pretending to not be that gender because other people wouldn’t like it, you might care.
Just like you might care if you were black and someone refused to stop calling you ‘negro.’
the problem is, in the tech world, many transgender people seem to make their entire existence revolve around their gender identity and then try to force inclusion politics on everyone.
Your perception and opinions is likely why you don’t know of any adults who fret over third person pronouns. You are not a safe person to bring those concerns up to so no one is going to out themselves around you. I assure you it’s more common than you think.
Generally speaking we’re looking to gain quality of life. If someone negatively reacting is a bigger problem than the internal dysphoria triggers then we take the loss and just quietly hope we don’t have to be around you for long.