Isn't "adequate" the key word there, though? We do have an alternative that works in theory - if everyone wore an N95 (or knockoff, even!) mask at all times in

Isn't "adequate" the key word there, though? We do have an alternative that works in theory - if everyone wore an N95 (or knockoff, even!) mask at all times in public, indoors and outdoors, and if all restaurants did takeout only, the risk of transmission would be extraordinarily low. And it's not zero even with the vaccine. The vaccine does different things from masks, though. I think money-grubbing Big Pharma execs who were recently regulators on the other side of the revolving door would easily be able to argue that ivermectin (or vitamin D, or whatever), useful as it may be, is not an adequate alternative to the vaccine, just (as you put it) another facet in a multifaceted approach, and the vaccine still needs an EUA.