Calling people what they ask to be called just doesn’t have to be this difficult.
We in fact do it all the time. It’s just people have gotten used to using names. But it’s not like you were born with a Dave chromosome. Your parents decided to call you Dave, so in the end it’s also just a made up name/sound.
We agree. We make he/him obsolete and we’re all she/her, as there are more female people on the planet, so less people have to adapt