Unless they would be quite happy for me to smoke around them. Which is unpleasant, inconsiderate and also potentially health hazardous
Another poster is fond of smoking analogies, too. Almost word for word 
Anyway, both of you are wrong, of course you are. There are no vaccines against passive smoking related diseases, for one thing. And as Wax points out, not everyone has covid in the way that everyone who smokes will be exhaling toxins. Smoking has a fatality rate of around 40%, unlike covid. So yes. A ridiculous comparison.
I'm so glad I don't work with you!