If the VE is negative as seen in the Cleveland clinic study, that means you are more likely to get infected if you are vaxxed AND that also implies you are more likely to be generating variants.

2-5% of the population gets a reinfection from a CV annually. Increase the mutation rate and that reinfection rate will increase concordantly. So the unvaxxed/naturally immune will get another CV cold in their lifetime. Public health should not be using non sterilizing vaccines on a highly mutable RNA virus.