The people who oppose that vaccine value ethical behavior more than they value specific health outcomes.
In comparison, HIV transmission risk is so disproportionately from men who have sex with men that they might as well revert to first acronym they had. I think we’re mature enough to not be exclusionary.
To avoid misapprehension, I think people whose ethics cause them to withhold medication have bad ethics — Acknowledging the existence of such people does not imply agreement with them.