Just three?
1) Not sure what you are talking about. People are going to do what they want to do. Increasingly. Back side of the sign doesn't say nothing. And we will see this in future eruptions. A more regional approach to health recommendations. More variables in the models. To the extent it matters.
2) Nope. It's not a "health expert's" (whatever that is exactly, epidemiologist maybe) job to do the economics and balance all the stuff you get so worked up about. That is an elected official's job, balance the inputs. The science must be insulated from these necessary creatures. So if you don't like them you can vote them out. At least for the moment. People like Fauci are not health experts. He's not close to the data at all. Hasn't been for decades. He's a political middleman, an insulator of sorts. The question stands "If he is the devil incarnate why did Trump keep him".
3) The polarization will almost certainly get worse. And then maybe it will get better and maybe it won't. If "experts" are your boogeymen that's convenient but the fault is collectively ours. But there's always surprises. Huge winds farms across 1-80 through Iowa. I mean, it made Palm Springs look like a dog and pony show. Power ebbs and flows.
I'll rewrite this as I see it. "A technocracy (Dodging the politics of eternity that we've managed, against great odds, to keep at bay for ~250 yrs) only works with experts (a citizenry and political structure) that is open minded, rational, untainted and uncorrupted. Those conditions (increasingly) don’t exist in the real world. It’s (become) utopian fantasy (a system of power and wealth accumulation) that benefits a certain class of people puffing up their own societal status (who have become adroit at using smoke and mirrors and getting people to look at little screens).