So what you are saying is these are not vaccines that prevent you from getting the disease as the smallpox vaccine does. Rather they are therapeutics, more like an antibiotic. They don't stop you from getting COVID but treat the disease if you do get it.
That is like getting chemo treatments even though you don't have cancer now so that if you do get cancer at least you already have the chemo in you. How does that make sense?
We don't know what the long-term effects of these injections are. However, we do know they don't protect you from getting COVID, we know you can still get sick, and we know that you can still infect someone else. These injections don't seem very effective for what they were designed for. Is it really worth it, especially for children who have a very low chance of serious illness or death?