If the unvaccinated have been exposed, whether they had symptoms or not, they have antibodies that their own immune system created and they are they are no more of a threat than the vaccinated.
Why is this point never, or hardly ever, mentioned in these articles. What about people that have already had the virus and recovered on their own with no vaccine? My wife was tested and told she had covid. I assume that I also got it since I couldn’t taste (other than salt) or smell anything for about a week then it was back to normal. I assume our own antibodies kicked covid’s ass.