Yes, ivermectin is cheap, but so is fluvoxamine, and works three times better.

The AstraZeneca long-lasting MAB WAS specifically created for prophylactic treatment of people with compromised immune systems, who do not respond to vaccination.

Contact tracing can be done right, but I doubt it can be in America. It's very difficult with a virus that spreads with mostly asymptomatic cases, before any symptoms appear, is often mistaken as a cold, with 1/3 of the population denying it exists, refusing to respond to contact tracers, refusing to wear masks, refusing to quarantine, refusing to get vaccinated, etc. In the real world of America, more attempts at contact tracing wouldn't have done much at all with this population, half-assed "lockdowns" that were not really lockdowns, governors and judges that fight public health measures, etc. If government had tried more contact tracing, if would have been fought tooth and nail by all those forces. Want real public health? You are going to have to start with shock treatments for 1/3 of the population, recall some governors, and force some Supreme Court justices to retire. Good luck with that. Seriously, I'd support that completely.

People actually are using wastewater monitoring, improved ventilation, HEPA air filters, etc. Why do you think so many restaurants have outside tables and sell so much take-out food. Indoor dining restrictions are quite effective where anti forces don't get them cancelled.

You blame the political Parties, but those simply reflect the people. Yes, it would be nice if people were more logical. Much better policies would result if so many quit voting against their interests, manipulated by dog-whistle nonsense. Much better if so many people were not so stupid and greedy, too.

Vaccines have always been one thing: Their use has always been to keep most people from getting seriously ill or dying. That's what immunologists and vaccinologists have known for many decades. But it's not what mass media has run with. The "shifting argument" you are complaining about is a product of misrepresentation by media and politicians. The Provincetown event is a case in point: A mass gathering of mostly vaccinated people in close contact indoors resulted in some infections, but very few hospitalizations among the vaccinated. It actually proved the vaccinations were working as expected. But the press freaked out by people getting mildly infected. The CDC over-reacted to the press freak-out and started a booster campaign, because they thought vaccinated people's T-cell response might contract. (They knew antibody levels contract.) But there was zero evidence for their idea at all! Very much later a Canadian study found that boosters at 6 months gave much broader immunity to variants as well as temporarily increasing antibody levels. This was because the initial 3 or 4 week vaccination interval was much too short for good long-lasting immunity. Not to infection, but to hospitalization and death.

The very best prophylactic for Long Covid is vaccination. It even works pretty well if you get vaccinated within a month AFTER a covid infection if you were unvaccinated. Doctors are telling their covid patients this, and some of them listen. Some don't, and they get a lot more Long Covid. But they didn't listen very well before getting infected, either.

Immune exhaustion is something theorized but as yet unseen, Most immunologists are not worried. Same for "immune original sin" and "antibody-dependent enhancement".

I agree with you about rich people spreading the virus. But government attempts to shut down travel have all been way too late. And rich people are not the only travelers. A huge number of poor people travel to find work. For example, Filipinos. There is a reason the First Class sections of commercial airplanes are much smaller than Economy. As for differences between rich and poor folks in exposure, if all those who need to work in high-exposure jobs got vaccinated, they would be much much safer. Health care workers are the best example of "high-exposure" and this is exactly why hospitals want all of their workers vaccinated.

Educating anyone benefits everyone.