I agree that the measures you describe for pre-school children seem unnecessarily extreme. Our 2-year-old granddaughter (who will soon turn 3) has been in daycare Monday through Friday from 8:30 to 5:00 since late May 2020, and they have never required the children to wear masks -- only the staff. They have shut down operations temporarily a few times for 1-2 weeks due to reported infections or known exposures, but more recently have only closed the specific classes in which the affected child was a member. When we take her out to the playground by the lake, or to the Disney World parks, or to the mall, she has only been required to wear a mask during the time we're indoors.
I believe that requiring masks for kids under 5 is excessive and probably accomplishes little to reduce the risks of serious illness.
As for the NY Times poll you reference, I can't imagine anyone is shocked to learn that vaccinated people are more fearful of COVID, more likely to comply with the recommended protective measures of masking and social distancing, and more supportive of mandates. It's equally unsurprising that the overwhelming majority of deaths attributable to COVID have been among the unvaccinated.
https://www.vox.com/22894978/covid-1...-omicron-chart
The simple fact is that some people don't see the virus as a serious threat,
some people don't accept that the protective measures advocated by public health authorities are really effective or justified in light of what they perceive as the countervailing costs, and some people just believe that their freedom to disregard the mandates and recommended restrictions is more important than the health and safety of others. Given the evidence that has been accumulated over the past two years, it seems doubtful that any of those people are now likely to change their positions. IMO, it is those people who are principally responsible for the unfortunate fact that we haven't already succeeded in emerging from this pandemic, and whose continued resistance poses the greatest risk that new variants will develop to prolong this tragic global disaster.
I won't be around to witness it, but it will be interesting to see which of the two groups -- those who comply with the restrictions and those who reject them -- history ultimately judges more harshly.