You know I highly respect you, so don't take this further probing/questioning in any antagonistic way, but true inquisitiveness on my part towards somebody who I mostly agree with regularly on most all social and theological issues.
The "jab" not only lessens severity, but also death potential for those susceptible to Covid. That is important to not omit in the totality of consideration in the scheme of those most at risk. Secondly, as long as the idea of herd immunity is not achieved via worldwide vaccination and/or infection it will continue to be a goal to get the entirety of (including thirdworld) the globe's population to participate in the reduction of infections, so that mutation is not as likely to occur. Lastly, break-through infections occur, and this is not surprising or new news. In addition, the percent efficacy naturally allows for the possibility of this "fully" vaccinated person to have been a breakthrough case. Context matters, and in this story, the person hasn't been boosted, meaning that if their first vaccine and second vaccine were received more than 6 months ago then their immune system protection likely was greatly compromised.
I say all this, because it is often the case that life-problems are very complex and takes great analysis of all relevant facts before understanding enough to make informed decisions that affect things which ultimately translate into public policy matters. I think you give great consideration to things before rendering your verdict, and have zero problem with you coming to differing conclusions that me or anybody else who may be at odds with your perspective, but wish that ALL people on both sides of the issue wouldn't engage in willful confirmation bias when they make a final decision on how to best combat this serious problem. God bless you and yours bro.