The CDC actually changed the definition of the word 'vaccine':
Before September 1, 2021, the CDC had defined a vaccine as “A product that stimulates a person’s immune system to produce immunity to a specific disease, protecting the person from that disease”.
Now, CDC states a vaccine is “A preparation that is used to stimulate the body’s immune response against diseases”.
So, considering that legal jargon, the covid vaccine is not even a vaccine as we, the huddled masses, understood it.
Also, on a personal note, I would rather catch covid from the unvaccinated, than the vaccinated.