Wrong.
You are just totally misinformed.
All the mRNA injections do that is good, is temporarily stimulate antibody production.
That lasts less than 6 months, so it can't end an epidemic like real immunity does.
In fact that prevents real immunity, so makes an epidemic last much longer.
Since the mRNA injections only cause your own cells to start producing spike proteins, there is nothing for the immune system to store in long term T-cell memory.
It can't store anything about spike proteins, because your own exosomes have to use those same spike proteins.
The way covid gets into cells is by mimicking our own exosomes, and they use the same spike proteins in order to unlock the ACE2 receptors to let them in.
If any covid variant were to modify its spike proteins, then they would no longer be recognized by our ACE2 receptors, and the virus would no longer be able to access any cells any more.
That is also why the mRNA vaccines can not change for the many variants, because the mRNA vaccine only contains instructions for making spike proteins, nothing about the actual virus or any variant strain related information.