Unfortunately, yes. The unvaccinated are a fertile ground for strains to develop. Protecting the unvaccinated is in your own best interest. We're going to need new vaccines when the the virus evolves in the unvaccinated, but the vaccinated can delay that eventuality.
People with a vaccine that doesn’t stop infection may have a higher chance and time to help develop mutations in order for it to survive.
It was extremely dangerous to push an imperfect vaccine, and because we know the current ones do not stop infection, transmission, or lower the viral load, that might be what has happened. IDK, not an epidemiologist.
https://www.chop.edu/centers-programs/vaccine-education-cent...