Many times the tests are self-administered. The last two times I have gotten a PCR test, I was told to do the swab myself and I did it with nobody watching me. Your points are irrelevant - it does not matter how these tests are supposed to work if they are so easy to game. These PCR tests are very very easy to get whatever desired result you want - negative or positive. Kind of like the 2020 Presidential election.
Many times the tests are self-administered. The last two times I have gotten a PCR test, I was told to do the swab myself and I did it with nobody watching me. Your points are irrelevant - it does not matter how these tests are supposed to work if they are so easy to game. These PCR tests are very very easy to get whatever desired result you want - negative or positive. Kind of like the 2020 Presidential election.