Well, if you want the truth, then you should collect all studies about the danger of the vaccine. BUT you should research also the other side. How many people died, because of the infection with Covid. How many would have died if there was no vaccine.
When you collect them all, what is not possible, and compare them, then maby you will have the true picture. Then it is clear the vaccine was a blessing or a curse.
So this is probably not possible. So you will find those for them the vaccine was a curse and those for them was the vaccine a blessing.
I am convinced that without vaccine much more people would have been died or have had more serious health damages.