You have a lot wrong...
People who aren't vaccinated could carry it to the games, even if they have no symptoms, and then get other people killed. It's not just THEIR choice... Wtf? They are choosing to potentially kill other people based upon their desire to attend a sports game... without being vaccinated for a deadly virus.
And those who are vaccinated aren't likely to get it. The vaccines are like 90%+ efficient. The idea behind a vaccine is to prevent people from getting it, not to prevent people from dying after they get it.
Everyone being vaccinated prevents people from spreading a virus that can be spread by those with zero symptoms, who have no idea they have it, thus killing other people, unknowingly. Have you really followed this pandemic that little throughout the past year+?