As I stated, which you ignored, the lockdown asked 330 million plus Americans to do exactly what I'm suggesting those 52 million seniors do, but you seem to believe is impossible. If those 52 million cannot do the lockdown effectively, then what was the point of asking 330 million to do so?
The remainder of the immune compromised could shift to telework and online school in the same manner that the majority of the population was able to.
I really don't understand how you latched into this a your big gotcha point, this is the easy part to understand.