The first problem here is I don't except your premise that it's false.
The second problem here is your idea of "ending it" with a version of herd immunity that doesn't involve vaccination (at least that is how I'm reading it). You're proposing allowing a disease to "run it's course" and letting millions of people die as a result. Aside from the ethical aspects of this, our healthcare system would be completely overrun and broken (look at other countries like India).
Its not my premise , but epidemiology 101, that the more time you give an epidemic, the harder it is to end and the more dead you get.
And "flattening the curve" in no way helps, but instead just gives an epidemic more time to spread.
It won't spread as fast, but with more time, the circles of contact widen, so it spreads much further geographically.
And no, you do NOT end up with millions dead because you deliberately accelerate the spread among the young/healthy who are not likely to die.
They are 400 times less likely to die than the elderly and compromised who are dying now.
So if you deliberately infect those who are not going to die, you reduce the death toll by a factor of 400.
So then Fauci's 2.4 million dead becomes only 6000, and we could have ended it last March.
Go look up variolation. It is what we used to do, going back to ancient Egypt.
It is how we discovered vaccination, from first doing variolation.
Vaccination normally is even better, but not when you wait a year and then use very risky experimental pseudo vaccines that are very risky.
They do not get the immune system to target a particular virus.
They only have the spike protein and nothing else.
That could cause the immune system to begin targeting exosomes that also share that spike protein.