When there is no evidence to support a hypothesis, then It is nothing more than a belief. This really is the core of all the fiction that people believe in the world today. They have no evidence for their beliefs, yet they continue to believe them anyway.

This is a very simple logic problem. One does not need to be a 'trained expert' to figure this out.

If an infection occurs in the lungs, then in order to target that infection with antibodies, they need to be able to get to the infection. The spike protein antibody has no pathway to get into the lungs using parenteral administration.

The lung barrier prevents water molecules from getting into the lungs. Water has a molecular weight of 18 daltons.

The spike protein has a molecular weight of over 150,000 daltons.

There is no possible way it could ever get to the infection to treat it, because it cannot cross the lung barrier. Therefore, without explaining this problem, everything else supporting this belief HAS to be invalid.

Also, flu shots don't prevent flu. They never have.