Earlier quoted context omitted.
Why wait? Why not take ivermectin as a precautionary therapeutic given it is well tolerated with low risk of side effects? There's a chasm between the epistemic question of "does this drug really work?" and the pragmatic question of "does a risk-reward analysis under uncertainty say that I should take this mostly safe drug that might slightly reduce my covid severity?" FWIW, I wouldn't take ivermectin either as a pro…
Why not using a de-wormer against a virus? Well, because that's what vaccines are there for. And we do have rather effective ones by now. All of which have a low risk of side effects as well.
Also, I don't like your first sentence, it's a rhetorical gotcha that is actually not in line with the medical establishment's thinking on ivermectin's hypothesized mechanism of action:
https://www.covid19treatmentguidelines.nih.gov/therapies/ant...