Oh, I'm 100% sure it won't happen. They might try a threat of a sort of "back of the queue" type scenario but not a withdrawal of "free" NHS treatment. Successive governments have said that taxes pay for the NHS, it would open the floodgates for legal challenges about paying taxes - and that's just for starters. The "back of the queue" thing would be more "palatable" to more people. I think that I, as a smoker, should be behind non-smokers for treatment for diseases/conditions that can be caused by smoking, and I think a lot of people would agree with that and think similarly for those choosing to be non-vaccinated. I don't smoke around non-smokers because of the potential harm it could cause them, so maybe non-vaxers should choose not to be around other people due to the same. That's a bit of a tangent, but still ...