That sucks, but consenting adults can damage their brain in any number of ways, and if they got the jab, whatever, they chose to roll the dice and do the popular thing at the time. What really sucks is the brain damage, or rather, lack of brain development, that happened to the kids for two fucking years. Disregarding the jab entirely, a lot of the kids in my area spent a solid two years of their developmental phase watching people wear masks. Learning how to interpret the emotions of another human's face is one of the most important evolutionary skills there is, so much so that it is partially hard-wired into us, in the form of Pareidolia, and we will have a whole generation of kids who suck at it. Everyone got brain damaged from the bullshit that went on in 2020, regardless of whether they took the jab or not.