If 20% of 350 million Americans died of the virus, that would be 70 million deaths.
Based on what I know, 70% of Americans got vaxxed. The article stated that 20% of vaxxed people died. .7×350 million is 245 million. 20% of 245 million is 49 million.
I just did the math in my head for a quick approximate number. There should be 30-50 million dead if this story was true.