I'm not sure QF would be legally allowed to do this as a condition of carriage, it sounds like discrimination. A government could impose a requirement on health grounds but that is a totally different thing.
Regardless, this is an aviation forum so most of you should understand the concept of not buying the "A Model" of anything.
I do not know anyone that is fundamentally opposed to vaccinations but I also don't know anyone that will be rushing to get this particular vaccination. It is also worth noting that there are several competing vaccines and some will work better than others and some will possibly do more harm than others.