I think assuming that it's out of "spite" is an example of not realizing how "your side" might be causing the division.

There are a lot of people who have already had covid and now have antibodies, who were also never in, and continue not to be in, a risky demographic. The risk for these people is very, very low already.

On top of that, the vaccine is not entirely without risk. There have been many reports of side effects, specifically heart issues in young males. There have been some deaths.

The counterargument might be, "okay, that may be technically true, but the risk is very, very low." And the people who do not want the vaccine, who are not in a risky demographic, might say in reply to you: exactly, that's the same thing we're saying about the virus.