Either the US health care system is a reliable source or it’s not. Unless you have an actual informed reason that isn’t post-hoc construction, based on reliable information about both processes, for believing the VAERS reports but not the clinical review process?
Yes of course I’m choosing to trust both. I believe in the checks and balances in the system, that these organisations contain people with a variety of political beliefs, that freedom of speech and the press is an effective counter to deception. But at least I’m applying that trust consistently. If you distrust them then fine, I’m sure you have your reasons, but please at least be consistent about it.
Meanwhile, COVID-19 itself also causes heart problems with higher severity and on a much larger scale. In children, this usually is multisystem inflammatory syndrome that can cause severe damage and death. In adults, severe heart attacks are a known (albeit rare) side-effect of COVID-19. [1] There is also early, but not conclusive, evidence that the coronavirus can cause longer-term heart damage in some cases, such as scarring.
You're welcome to make your own medical decisions such as whether you'd like to get vaccinated, but all of the data I'm aware of suggests that by any measure, vaccination is probably a good choice for the vast majority of people (barring those with allergies to the vaccine, or other known issues).
[0] https://www.cdc.gov/coronavirus/2019-ncov/vaccines/safety/my...
[1] https://www.hopkinsmedicine.org/health/conditions-and-diseas...