Best hole I can poke in this is the possibility that the pandemic will not substantially mutate faster than the world's capacity to vaccinate. This is to be seen.

The AstraZeneca vaccine that is no longer going to be used in South Africa, for example, appears to be the only one that does not have meaningful effect on the SA variant. So it's possible that the vaccine might largely snuff out global covid. I just don't know how fast the virus mutates in substantive ways enough that it can evade vaccines. It may be unknown to all.

But even if the pandemic is not going to be an indefinite feature of the future, I think that there would still be some wide support for this kind of action, but especially while things are up in the air.