It isn't causality. It is simple denial. If they could go back in time they wouldn't do it. But they did so it doesn't matter.

The vax is safe. It has to be. These issues are unrelated and the vax is protecting them. It has to. COVID is dangerous and would kill them. It has to be.

They not only become pro-vax to the extreme because their life is on the line but they also become complete COVID propagandists because COVID has to be ultra-dangerous for them to have taken the risk. If it isn't then they fucked themselves for nothing when they do inevitably admit to themselves the vaccine is the cause.

Its why you hear "Well it would have been worse if not for the vaccine". Because they must justify the vaccine even after catching it. If the vaccine did nothing then they took a pointless risk. If they give it to their child and they die then COVID would have killed them anyway. That has to be what would have happened.

Cope gets thrown around here too much but that is literally all it is.