It is clear that no Catholic has the right to defend Pope Honorius. He was a heretic, not in intention, but in fact; .....but he was not condemned as a Monothelite, nor was Sergius. And it would be harsh to regard him as a "private heretic", for he admittedly had excellent intentions.
Honorius can not be regarded as even a "private heretic". Therefore, we can not use Honorius as an example when we are discussing public heretics such as Francis. I know many traditionalists like to use Honorius' situation as analogous, but the fact is it is apples and oranges.
Not even a private heretic? Still a member of the Catholic Church.
Public heretic? Not a member of the Catholic Church.
Are you arguing he is not a heretic or not an ‘antipope’? I would argue regardless of status he is both.
BTW, what side of Joan of Arc are you on?