From the get-go, the messaging should have been: "This is an evolving situation, and we're doing our best to keep up. Right now, our recommendations are X. As we learn, those are going to change."
That's what Japan did. Humility and respect.
It worked.
In the US, it was: "Masks don't work! You're too stupid to even know how to use one properly. Save them for nurses. No, wait, if you don't wear your mask, you're literally killing grandma! We'll arrest your goat-fucking inbred ass if you don't mask up. Trump's vaccine? You'd have to be a colossal moron to take that experimental garbage. Not for me! No, wait, it's Biden's vaccine now? If you don't get the jab, you're Hitler Squared! Don't want it? You're fired!"
How well this worked is left as an exercise for the reader.