I actually agree with the sentiment, but there is just no way to realistically apply this. There will always be a significant number of people in the "gray" zon

I actually agree with the sentiment, but there is just no way to realistically apply this. There will always be a significant number of people in the "gray" zone (can't get vaccinated because of some other health condition, as a simple example) and so the burden of determining who is "good" and who is no tis on the already over-burdened staff. This is why triage has historically been, and will conceivably always be, the way hospitals adjudicate care .