Well over 100 million Americans get the flu shot every year, probably many have gotten both covid and flu shots this year but still you would only expect roughly a doubling

Because there were Measles and Polio vaccine deaths way before that were completely unrecorded.

They want you to fixate on the vaccines as the endgame because that suggests this is a realistically survivable crisis instead of an unopposed attempt on mass democide through fear and isolation (As universe 25 tells us that leads to mass cannibalism and suicides). The latter is what will exactly happen next.