Your answers tell me everything I need to know about the maximal fruitfulness that an online discussion can produce. And, in this case, it's sadly not much. (So much more can be accomplished by way of human unity over beers by an open fire!)

I will simply note that the "no one is fully vaxxed" point is moot because it's the same thing as saying "no one's immune system can keep them alive forever." Of course not. (A healthy immune system boosts itself millions of times per day. This jab just helps us take a big leap against the odds of dying of Covid-19.)