There are some scientists (I am not a scientist) suggesting those who receive the vaccine are in greater danger since the antigen specific vaccine cells will out compete natural immunity of innate immunity due to high affinity yet will not kill the infected cell. These vaccine experts suggest those who are vaccinated will fall way faster than non-vaccinated. Either way there is a chance the future is not promising for the young who have very strong humoral immunity. For goodness sake they don’t spread it and have an exceptionally small chance of severe disease.
We're already seeing younger people in the ICU on ventilators. It's learning to use the unvaccinated as a host. Why wouldn't it? the vaccinated are going to be just fine. We'll get booster shots if need be. The unvaccinated are effed.