And once it is "understood for what it is", what then? Can it be treated or cured? Because it doesn't sound like a healthy way to live
It sounds as if this is something that the person is going to have to live with pretty much for life, or until the orientation shifts or fades of its own accord.
Grayson Perry talks very revealingly and honestly about this in his memoir. Although, of course, Grayson Perry, has never made the leap into suggesting he is a woman.
I do think that some of the lines of questioning to Debbie are harsh. I think what they are doing, and admitting so publicly, is brave and with major implication for them in their life. Debbie will also know, and understand well, the power of the trans lobby to enforce compliance, not only in their intimate personal life, but in their public and professional life too.
Debbie's is an important voice in pushing back against this, and I wouldn't want to completely alienate them.