I was just saying that it's never been proven that sedevacantism is a fact. It's a matter of opinion.
It has not been satisfactorily demonstrated
to you, but that is not the same thing as its not being a fact. At the moment, I am not saying it IS, but pointing out that something
can be a fact that isn't recognized by anyone as existing or true.
If it's your opinion that Benedict is an anti-pope, then there's nothing wrong with that. It's just wrong to say that it's a fact.
No, it is fine to say it is a fact if one holds it as such. No one would believe it at all unless they thought it was a fact that had been demonstrated
to their satisfaction. Do you believe your opinion about BXVI is a fact, or just an opinion?
What you really object to is that some who take it as a fact claim that others
must also believe it, even if they have not seen this or that bit of evidence or reached the same conclusions (and Holy Church has not definitively declared one way or another). There are those who think V2 has been a wonderful success. Does that mean it is WRONG for you to say it is a fact that it has been an unmitigated disaster? No.
Just to give you an example...Pretend there is a scientist who proves this or that through experimentation, observation, etc. Then, he shares his results with the world. Some agree with his findings, others do not. He claims his discovery is a fact, although there are some who disagree with him. That does not make it WRONG for him to call his findings factual.