I remember early last year when the news was showing people walking down the street in China and just dropping dead. They literally showed people strolling along and then dropping to the ground and dying and they claimed it was from covid.Have you read an article or have evidence we are there yet? Because I haven’t, other then a warning from a company hoping to sell more product. Believe me if/when that happens it will be all over the news but so far there has not been a large amount of reinfections/vaccinated people getting sick. So stop insisting the end times are here. What you are describing is a worst case scenario.
The immune system is funny in how it works, but it definitely will bump up production of antibodies/t cells if you get exposed again, and provided those stay above a certain level you won’t get sick. Covid was widely circulating less then 4 months ago, meaning lots of people got reexposed.
As always when it comes to the future no one knows nothing. For now the vaccines remain protective. We also don’t know if last weeks increase was holiday related. If things really start to change I’ll change my tune but for now the sky is not falling.
We know now that those stories were completely false and ridiculous. But The sky was falling for many people when they saw that. Now all it takes is words like delta or lambda and the sky is falling again.