As I recall, all the side effects of the Covid vaccines are side effects present with other vaccines, and they are all auto-immune responses. You are at a much much greater risk of all of those if you actually caught Covid.

I suppose there is a bit of calculus involved. If you are 100 times more likely to suffer from Guillain–Barré syndrome or myocarditis if you catch a disease, but the disease is exceptionally rare, it might not make sense to get a vaccine. In Covid's case though, a substantial amount of the general population caught Covid, meaning that the overall risk was substantially reduced by being vaccinated.

Some people just seem to have trouble with risks and percentages; shades of grey rather than black or white. Getting vaccinated isnt 100% the right call, it's only 99.99+% the right call. Ironic that the same people were totally cool with a 0.5% of Covid killing them, never mind all the other severe side effects. You were asking them to make a choice between 99.99% fine vs. 90% fine or 99.9999+% non-lethal and 99.5% non-lethal. You look at the relative risks though and the vaccine was thousands of times more safe than catching Covid unvaccinated.