The mantra from those vaccinated peeps who still caught SARS-CoV-2 despite being vaccinated is ... "Oh well, I'm glad I was vaccinated because it would have been much worse if I had not been vaccinated ..."
firstly, how would you know without possessing a time machine?
... and secondly ... actually it now appears that per:
"Fully vaccinated were more likely than unvaccinated persons to be infected by variants carrying mutations associated with decreased antibody neutralization."
My post from April 2021 is relevant here.