Because we know that Covid kills people (more than a million in the US), and there is very little evidence that Covid vaccines have killed people ( likely fewer than 100 deaths in the US).
The US VAERS vaccine adverse reporting system reports over ten thousand deaths post covid-vaccine, over two orders of magnitude more than reported for previous vaccines (including the flu vaccines which half of Americans take annually). Now, this does not imply causation, only autopsies can determine that, but for some reason in the US autopsies have not been done. In Germany, renowned pathologist Dr. Peter Schirmacher (acting chairman of the German Society of Pathology, director of the Institute of Pathology at Heidelberg University Hospital, and president of the German Association for the Study of the Liver) did conduct such autopsies, and found that 30-40% of the deaths following soon after vaccination were indeed caused by the vaccine.
Not only does it not imply causation it doesn't even imply correlation. If you got the vaccine and were subsequently hit by a truck you could end up in VAERS.
> found that 30-40% of the deaths following soon after vaccination were indeed caused by the vaccine
No, they didn't.
e.g. https://openvaers.com/covid-data/covid-reports/2251260
"On 06-Feb-2022, the patient received the 3rd vaccination with this vaccine. Pyrexia of 39 degrees Celsius developed. The patient took loxoprofen sodium hydrate, and the symptoms subsided. On 08-Feb-2022, around 20:00, the patient was confirmed as alive. Myocarditis developed. On 09-Feb-2022, at 07:00, the patient was found dead in the room. On an unknown date, autopsy was performed. No dissection was performed. The outcome of pyrexia was reported as resolved. The outcome of myocarditis was reported as fatal. Follow-up investigation will be made.
Company Comment: The events developed after the administration of ELASOMERAN and there is temporal relationship. Reporter's Comments: Since no electrocardiogram was performed during the medical examination, the condition of the heart is unknown. There is no lesion in the brain such as subarachnoid hemorrhage. As CT scan showed no remarkable findings, the causality between this vaccine and death is considered unknown."
(n.b. Elasomeran is the Moderna vaccine). There are ~28,000 like that in VAERS and more in other countries equivalents. The party line on these reports is they're all written by fools and things like a healthy 29 year old dying of myocarditis just days after taking a vaccine known to cause exactly that problem, is simply "unknown causality" and a coincidence that tells us nothing.
Unfortunately there's also the correlation with excess deaths.
https://bartram.substack.com/p/increased-deaths-in-england-f...
"I note that we managed to get through the Omicron wave in the UK with normal levels of excess deaths in those aged 75-85, but as soon as the booster doses were rolled out we rapidly hit the threshold for a ‘substantial increase’."
People who are trying to convince themselves and others that this is all just mysteriously undetectable COVID need to explain why the correlations are wrong.
Who is allowed, in theory anyone but if you browse the database you'll discover most are coming from doctors and pharma firms. The latter are obliged to report events when they become aware of them and awareness of reporting systems outside the medical profession is low. The one I cited was picked semi randomly while writing that post (first report that was of a young person's death with more than a few lines of detail), and it came via pharma.
At any rate, as you just saw, the reports from medical "professionals" are not more professional than ones from average people. They have more detail but are so reluctant to acknowledge the obvious that they'll happily claim deaths that occur days after injection from known vaccine side effects are just coincidences.