And it doesn't even have to be intrinsic to the vaccine, it could be a manufacturing error like there was with Polio.
As I said, I am vaccinated, but this reaction and militancy really puts me off and frankly, I think it is a bit stupid. Not your comment though.
All we can consider is _actionable_ information. All information so far points to the side-effects of the vaccines causing problems at negligible levels compared to the the side-effects of getting covid. That is information we can use and it really only supports one conclusion.
Anyway if you'd like an anecdote, I have a friend in Spain who just got the delta variant along with his 4 friends a few days ago. He was about to get his second shot yesterday (obviously it's postponed now) and his 4 friends were all completely vaccinated when they got sick.
That same question can be asked about covid so I don't understand how this single point brings anything to the discussion. We don't know the future. We don't know the future vaccine effects just like we don't know the future for covid effects.
We do definitely know that the effects of covid (even if you discount them by the fact that not everyone gets covid) are much worse than the vaccines. Everything points to the vaccines being much better than the disease.