I personally don’t see mandatory vaccination as that much of a stretch. I would have pre-Covid, but since then we’ve had mandatory no-sitting-on-a-bench, mandatory no-meeting-a-friend, mandatory wearing-a-mask, mandatory taking-a-test-for-returnees, mandatory detention-in-a-hotel, and mandatory you-can’t-do-a-load-of-things-unless-vaccinated.
Is mandatory you-must-have-this-vaccine really that much of a stretch in comparison to some of these*? What is truly so special about a medical treatment as compared with the other restrictions on freedom above?
* I feel I should highlight here that I am not in favour of any of the above items, and I’m certainly not in favour of mandatory vaccination. Not only that,
I suspect it would be counterproductive. I just think it is somewhere in the middle among those apparently socially acceptable interventions.