No, I disagree, it is not a case until a positive test is confirmed by another sort of test or symptom, which in the great number of positive results are not happening. For example, I had a sonogram of my abodomen that showed a spot or abnormality near my bladder. My doctor then sent me for a cat scan with contrast to confirm the diagnostic finding. Thank God it came back with a negative result and it was chalked up to an artifact. This was 5+ years ago. It was never considered a case of bladder cancer/abnormality/infection or whatever as I had no other supporting tests or symptoms. Another example, my daughter goes to the pediatrician, gets a swab of her throat as it is suspected it is strep. It comes back positive AND there are symptoms in her mouth and throat visible to the doctor it is strep. If there are not any symptoms the doctor may suspect it is strep but cannot confirm it so he has a decision to make but it cannot be tallied as strep.
PCR was never meant to be a test for pathogens as per the creator of the test has stated in the past. If the cycles are too high, which they were, you can get a positive hit on anything you are looking for. It's like running a blank piece of paper thru a copy machine 40+ times - it is going to come up with spots and shadows eventually.
"PCR was never meant to be a test for pathogens as per the creator of the test has stated in the past"
This is false, and based on a quote misattributed to the creator of PCR, Kary B Mullis, who died in 2019. He said you can't use PCR to determine the level of virus in the system. PCR was designed to detected presence, not quantity.
The source if the misquote is this article from 1996 on PCR testing and AIDS. Mullis only has a single quotation in the article.
http://www.virusmyth.org/aids/hiv/jlprotease.htm
With regard to the viral load tests, which attempt to use PCR for counting viruses, Mullis has stated: "Quantitative PCR is an oxymoron."