The average person has experience with vaccines that have 3 properties: (1) long lasting, (2) prevent contagion (3) and major symptoms. By calling the mRNA shot a vaccine , the WHO and CDC transferred such properties to the shot. That may have been great for encouraging adoption, but also comes with consequences particularly if two vaccine properties fail to hold, and a 3rd is not flawless.
This was never made clear by anyone of relevance - instead the mantra was "take the shots and all will be well". We oversold the solution.
People took the shots, then behaved as if nothing else mattered. Dropped masks. Started going nuts.
Now we see the results.