Do you not see the folly here? You are dictating to a "true pope" what popes must and must not do, or what they can and cannot do.

isn't ^ this what you have been doing your whole life?
Actually, for you it is much worse I think.
In your scenario question to me, he is only a "hypothetical true Pope." There are many factors to consider about such an alleged "true Pope", i.e., where did he come from? Where did he get his orders? Has he always been Catholic, or was he ever at one point heretical? Is he disqualified as eligible for some reason?, etc.
But in your case, - who you think the actual Popes are - you publicly accuse of being heretics!
You hate their heresies and have fought against them your whole life.
But what you fail to grasp is by blasting them as heretics, you are constantly "judging the Pope".
Do you not see the folly here?
The Church cannot act to give an "official condemnation" at this time (or perhaps never will before the Second Coming).
God has manifested their heresy quite publicly for all with eyes to see and/or ears to hear.
This is so that you may understand they are not with the Church in faith and therefore are not true Popes.