The Miriam Webster Definition of "anti-vaxxer" has been updated to include people who oppose mandatory laws regarding vaccines. So, that is everyone who values bodily autonomy. Definitely not dystopic:
Definition of anti-vaxxer : a person who opposes vaccinationor laws that mandate vaccination As anti-vaxxers launch a campaign against a bill that would eliminate their ability to opt out of required shots, supporters of the proposal are delivering more than 21,000 petition signatures to the office of state Sen. Ben Allen …— Alexei Koseff