DY >> many fine talmidei chachomim who have always been responsible leaders agree on not obsessing over Covid to the level you have,
A good question, except please strike down ” to the level you have”. These talmidei chachamim may be wrong, and in some cases, they changed their opinions over time, but most importantly, they need to deal with their followers and their capabilities and limitations. I can see, to simplify, the following logic: if those children do not go to yeshiva, they will go to other places, and the whole community will disintegrate. So, I don’t need to make a judgment about their judgment.
I am talking specifically about an individual. It is not material for him that someone permitted Covid kulos for the community. If this person is not behaving as a Talmid Chacham immediately (“at night”, using Gemora language) – fine, everyone can make a mistake in a situation, but if he does not stop (“in the morning”), then he is not a Talmid Chacham.