I‘ll say it again, this isn’t a black and white problem. Pointing to other places and saying “see, they had an outbreak, that means the virus will just run its course and we shouldn’t do anything” is flawed logic. As you started out saying here the goal is to reduce spread not eradicate the virus forever. Too many people focus on the fact that the virus still exists and try to draw the conclusion that mitigating efforts didn’t work, that includes the governor of FL who stated in Sept that restrictions on restaurants don’t work because Miami limited restaurants and the virus still spread there.
You brought up New Zealand (which triggers the Covid denier crowd) but it should be held up as an example of exactly how to handle things. They locked down, reduced the virus to a level it could easily be traced and then got as far as zero cases for a period of several months, then they had some additional cases and immediately pivoted to further restrictions to contain an outbreak. This is exactly what the plan should be, and their economy is wide open. During the 100 days of zero cases they had bars open, fans in the stands for sports and other activities prohibited here. They did pivot to close some of that down temporarily, but that should always be the plan. Reduce infection, open the economy and pull back when there is a spike. Instead, in the US, any attempt to pull back is met with people railing about freedom and the economy and various political talking points. It’s hurting us from a public health standpoint but also economically.