It ought to be self-evident that everyone has the right to choose what is put into their own bodies. It’s similarly obvious that we should not discriminate based on this. So what about Covid vaccines and Covid passports?
The parallel I see is cars. To be licenced for the public roads a car needs to pass an MoT test. This is only about safety and public good: it tests that the brakes work, the tyres won’t skid, the lights work and don’t dazzle others, that it doesn’t spew noxious gasses and so on. Some of the MoT is to protect those in the car, some to protect other road users. If your car fails you can’t take it on the road. You can still own it. You can admire it in the garage, or drive it round your country estate to your heart’s content. But you can’t take it out because that risks the rest of us.
Is taking a vaccine (making yourself safe for others) and a vaccine ‘passport’ (to prove it) not the same? It’s not mandatory, but there are restrictions if you can’t prove you’re safe.