Most of my coworkers can barely make it through their own tasks

I guess you haven’t met many CEOs, then.

But it already is, isn’t it?

So if this…

nobody’s main defining characteristic should be their gender.

…is what you really want you need to start with cis people and not transgender ones, correct?

make their gender the defining aspect of their character

The vast majority of cishet people (if not all) make their gender the defining aspect of their character - so why should trans people be any different?