The short answer is that the supposed “long-term impacts” aren’t really real. I recommend reading the literature on SARS-CoV-1, the “original SARS”, which spreads less easily but is far more severe. A normal SARS-1 case is like a severe SARS-2 (“covid”) case.

With SARS-1, there can be lingering fatigue and minor cognitive deficits for a few months post infection, but radiological abnormalities of the lungs, etc clear away within months and are certainly gone at the 1 year mark.

The evidence in SARS-2 is incredibly weak and especially for those who are asymptomatic or paucisymptomatic the chance of lasting harm is essentially zero. Remember that the real damage occurs from the immune response, so if you have no symptoms you cannot have damage. The notion being promulgated of having totally asymptomatic COVID-19 and then randomly showing organ damage (heart, lungs etc) is absurd.

Finally for mathematical purposes we need to consider long-term damage - which again just doesn’t really happen - as not as bad as a death. So we can still work it into the math just fine, whether you want to call it a tenth of a death or half or whatever.

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Oh finally, quick point that vaccines are not without risk either. Go read the data on the Moderna trials. Or the history of rushed-out vaccines that caused paralysis (it was either for swine flu or avian flu, I forget which)