That’s the text all right, but the text also says that all the President has to do is present Congress with a “written declaration that no inability exists” to get his job back. So as long as the President has the mental acuity to write a letter, he gets his job back. Not a high bar at all, and your “psychotic menace” or “nervous breakdown” Presidents can still write a letter.
It never says physically incapacitated at all. It says:
“unable to discharge the powers and duties of his office”
If the president has a stroke and becomes a psychotic menace. Nervous breakdown and won’t leave his room…all sorts of things.
That’s the text all right, but the text also says that all the President has to do is present Congress with a “written declaration that no inability exists” to get his job back. So as long as the President has the mental acuity to write a letter, he gets his job back. Not a high bar at all, and your “psychotic menace” or “nervous breakdown” Presidents can still write a letter.