Not everyone can be vaccinated.
Not everyone benefits equally from vaccination. The elderly, sick, or immunocompromised especially.
Not everyone who's unvaccinated is making the decision themselves. Infants, children, the disabled, and elderly may not be competent (or allowed) to make the decision, and if denied vaccination by an antivaxxer, are put at risk without informed consent.
Vaccines aren't an absolute protection. They seem to reduce rates of infection about 8-fold, and hospitalisation and death by about 25-fold. But illness, hospitalisation, long-term health impacts, and death, can still result.
The longer the disease is around and spreading actively, and the more different individuals it spreads amongst, the more it mutates. Delta is already more effective at breaking through vaccinations than the original Covid virus, and the likelihood of more infectious or more severe mutations persists.
Much of the world cannot yet get vaccinated, and is at greater risk of transmission by Covid spreading elsewhere.
Covid patients use resources and staffing of healthcare workers, first responders, and caregivers which are already overtaxed and which will result in undertreatment of other medical conditions.
The most powerful argument though was made to me elsewhere:
But of course these people weren’t fully informed; they were misinformed. They chose to believe people who lie to them. They trust people who betray them and are willing to sacrifice your lives to score some political points. They are the victims of a massive misinformation campaign that didn’t just start with the pandemic, but started way back in the 1980s. All of America is the victim of that, and much of the rest of the world too, but these people in particular. They are the dupes mobilised and sacrificed as part of the murderous political game that the Republicans and conservative media have been playing for decades now.
<https://joindiaspora.com/posts/aa6b8d80d96e0139c1dd002590d8e...>