There are many many flaws in your article:
1. You say "Yet most unvaccinated people nonetheless say it would be better to be infected with a novel virus over being injected with an FDA-approved vaccine"
The virus is novel, so is the vaccine. The mRNA is a novel vaccine. Never ever a vaccine was approved this much early without considering its long term side effects. The more than 90% efficacy given initially was a flawed one as given in the below article
The above article was proved correct, as now, the real world data shows efficacy dwindling to less than 40% in Israel, the most vaccinated nation, now considered only those given booster dose as fully vaccinated.
2. You say "If the only group choosing not to get vaccinated were young people, for whom the risks of Covid are much smaller (though still much greater than the risks of getting vaccinated), it would be one thing."
There is no evidence that people less than 40 who are unvaccinated are having greater risk than those who are vaccinated. I have seen the CDC study, Imperial college, London study which says no difference at all as they don't have data for, How many less than 40 got hospitalized and died and how many more than 40 got hospitalized and died due to COVID in vaccinated and unvaccinated?
3. You say "The oddity of this argument, of course, is that lots of natural things (measles, malaria, poisonous snakes, and so on) are very bad for you, while lots of artificial things (eyeglasses, hearing aids, artificial knees) are very good for you."
Why healthy eyes require power glasses or healthy ears require hearing aids is the point. You know what happens if properly functioning eyes are given glasses and hearing aids. It decreases their natural function and makes them dependent on artificial aids. Spare a thought for natural infection as even today more than 90% people are till asymptotic or have mild symptoms to the corona virus.
4. You say "The oddity of this argument, of course, is that lots of natural things (measles, malaria, poisonous snakes, and so on) are very bad for you, while lots of artificial things (eyeglasses, hearing aids, artificial knees) are very good for you. "
There are thousands of scientific studies available to say Ivermectin works well for covid. For example Ivermectin prime our immune system and
prevents covid proteins from entering nucleus of cells.
Self protection is the best protection and to stop the next pandemic we need to change the ways we used to create them as given in the below article.