This is a rapid antigen test. They aren’t used for case diagnosis. They’re a quick and cheap (but less accurate) way for people to get themselves tested. This is not the RT-PCR test used for a case diagnosis. There is no “damage” beyond some people wasting their money on a broken test.
The PCR test was also never supposed to be used for diagnosis. The false positive for that is high and can be extremely high depending on the number of amplification cycles that run the test through.
Using the RT-PCR for case diagnosis is a sham. Its not meant to diagnose anything per Kerry Mullis.
The RT-PCR is typically run at 40+ cycles with a 90% false positive rate unless you are vaxxed then it is run at <= 28 cycles.
The damage is the reaction to the false results on the test, or, as noted, the possible spread of the coof (lockdowns, we're ALL GONNA DIE™, etc.) based on a false negative.
Because SCIENCE!™
Liar.