It isn't that. It's a string of mRNA that your body takes up and uses to code the SARS-CoV-2 spike protein so that your body can practice fighting against it, but this has 2 main problems;
1. It is too narrowly focused. Having a drug that targets a specific aspect of a virus DURING A PANDEMIC just gives the virus a vehicle to evolve new variants that can bypass this defense. We have never done mass vaccinations during a pandemic before and this is for a good reason, it is a really bad idea. Narrowly focused vaccines spawn variants and as you can see it appears that the current shots do not protect well from the delta variant.
2. Specifically the SARS-CoV-2 spike protein is cytotoxic. When the spike protein comes into contact with a cell the ACE2 receptor, the receptor that the virus uses to enter the cell, is destroyed by the spike protein doing irreversible damage to the cell. This is actually why vitamin D is protective against this virus - vitamin D increases expression of ACE2 receptors giving you protection against the toxic damage of the SARS-CoV-2s toxic protein. This is why there has been so many bad side effects and deaths from this vaccine. It is quite possible that most people who have received this vaccine have permanent damage to their hearts, ovaries, lymph nodes, and bone marrow (the places where the spike proteins are likely to cause damage), but it might be years until the full effects are known.
Most vaccines are safe, but there was just not enough testing of this one. Trump rushed it through, Fouci let him, and Biden covered up the crime. There are not enough jails in the world to fit everyone who should be in one after this whole thing is over.