We’re something like 2/3 of the way there, maybe a touch more. And only in the USA. Non-vaxxers are a problem with that, but not, imo, the worst problem: The whole world is our herd, and in THAT herd, we’re only about 10% of the way to immunity. And as long as there are (a lot) of folks who are passing it along only a little bit changed for the worse, we’re still in danger (the egoistic view). Or you can be humanitarian and just wish that all those people could live instead of dying. What a WASTE!