Nonsense.
The MRNA _VACCINE_ reprograms your own cells to produce the SAR-COV2 spike protein.
Your body will see this, recognize it as an invader and destroy it.
Once your body sees the second shot, it will build a robust defense and hopefully create memory T-cells as well as b-cell anti-bodies.
There is no other way this works. Upon the next exposure to actual virus, it will destroy the virus quickly. A small number of cells may get infected, but no where near enough to begin viral shedding. You won't "get a mild case" because your immune system will shred it to bits. You will be effectively immune. This is virology 101.
Sorry, you are wrong.
Thank you for explaining how vaccines work.