that seems like a lot of massaging based on assumptions.One can't use 'actual deaths' for countries that deliberately undercount or simply don't report at all.
I'd deduct the overall population from those countries and evaluate based on those who share actual numbers. You take out those massive populations, the US suddenly pops up much higher as a % of global (sans these countries) population, and normalizes (I suspect, haven't done the math honestly) our death rates. Specifically, you drop out those countries that don't report, and I fully suspect our % of global pop is much closer to that 20% death rate you cite.
but i don't know.
i do think that, if the u.s. government had taken the situation seriously early on we'd have better data: more widespread testing; an effective national plan for investigating related deaths; a better understanding of how the disease affects the body and causes death; etc.
i don't know.Then, I'd ask a second question about our COVID death numbers and if you don't agree they are inflated (looking at NY and NJ specifically).
alasdair