Since the millions of dead victims from CV-19 never materialized, it could be deduced that the actions the nation and states took worked.
Hard to argue with success. Their actions appear to have worked as intended.
Even you qualify your unfounded assertion of "success" with the words "could be" and "appear". And that's all it is, an "appearance" that "could be" causally connected, not founded in data analysis.
There are numerous analyses available that show that countries, states, counties, and cities around the world that did NOT impose the more draconian measures (isolating the less at risk groups, i;e. non-elderly and those with no associated underlying conditions that would lead to poorer outcomes) of the "stricter" areas had the same or even lower infection and death rates. Plus, we all know that the death rates, in the U.S. at least, are grossly inflated by agencies (CDC and other local entities) declaring that people who test positive for COVID-19 and die are listed as a death attributed to COVID-19. This includes victims of car crashes and other obviously false attributions.
You have no evidence that the more strict measures "worked". No one does. Because there isn't any such clear and convincing evidence.
If you believe those measures are effective, do you then support those measures (stay at home, close businesses, stop all hospital services except emergencies, etc.) being put into place every time there is a flu virus that appears to be more deadly that the usual strains, including those in the past that have killed significantly more than the COVID-19 has? I mean, that would be "good intentions" based upon measures that "could be" effective and "appear" to work?
It's always going to be a "cost/benefit analysis". But that can't be done using bogus numbers and assumptions about causality that are highly likely to be untrue. We could save nearly 40,000 lives
per year if we banned any vehicle capable of going over 5 mph... all good people that don't deserve to die. But we don't enact that measure... why?