Should those people in the care homes simply all just die of a horrible disease then? And don't those people get visitors who can get infected? And are those people not being cared for by care-giving staff who can get infected and who would from there on go home and infect their families, and the personnel at the shops they go to?
For fuck's sake ─ to use one of your favorite idioms ─ try seeing just a little bit farther than your nose is long.
And when it is a well-established and known fact that 1 plus 1 equals 2, then it is up to those who claim that 1 plus 1 equals 6 or that it equals -3 to provide evidence of their claim, not up to the people who know that 1 plus 1 equals 2 to prove that this is how it is. The latter is what we have institutions known as schools for.