I guess the old saying is very true: "You can take a horse to water but you can't make him drink"
And so it is with anti-vaxers, IMO.
The overwhelming evidence is that if you are double vaxed (and later get a top-up) that you will have a much less risk of serious illness/hospitalisation/death than a comparable unvaxed person.
Vaccinated people take on lower loads of Covid (ie: the vax acts) than the unvaccinated and as such are less likely to be as you say a "super-spreader" but nevertheless they too can spread covid.
So for your own selfish reasons of not taking the Vaccine, just consider that if you contract the disease, you will likely require more medical treatment and have more after effects than a vaccinated comparable person.
Is that selfish enough reasoning for you...eh?
IMO its disingenuous to offer altruistic reasons for your own misguided selfishness .
But, again, as the saying goes: " You can take a horse to water but you can't make him drink" And so it is with Covid (and our educational system as well)