Comment by Kim_Bruning

Hold on—we're being a bit taxonomically lazy here, aren't we? You're applying a species-level classification (based on gametes) too rigidly to individual-level variation. If you look at actual developmental outcomes, there's a non-trivial set of cases that don’t map neatly onto a system of just two categories (which is not a lot of categories). Calling all of those 'disorders' assumes the categories are already correct, rather than testing whether they fit what we actually observe.

Ps. The Overton window is such an interesting concept; Imagine arguing our case before the head Eunuch of the Ottoman Court in the 16th century or so.