Why can't you see the difference here - IF YOU ARE VACCINATED YOU MAY STILL GET THE FLU OR COVID. Your statement above - if you have flu or any communicable disease is already considered a no go condition - SO DOES THAT MEAN I HAVE TO SHOW YOU A FLU VACCINATION PROOF BEFORE I GET ON YOUR PLANE? Are you getting it yet?
Entirely not my decision, that's something you take up with who operates the plane, the airline policy. Not sure what you don't get about that. I've never said I agree with doing any of this, it is how things currently operate and may get worse. As for new work, a company can exclude you because of no HSC certificate, no vaccine is way easier to prove you are at increased threat of lower productivity due to sick leave. You wont even get the chance to argue it, you just wont make it through the application process if you fail to provide a vaccine certificate and its one of the criteria.
Requiring existing workers to vaccinate and maintain vaccination is another matter, SPC Ardmona has already done this, with unanimous support from the workforce apparently. It's pretty easy to push non compliant workers out for other reasons and then mandate all new workers do it. If you've ever worked in low paid work, especially casual you'd know the way they deal with problem workers is just give them reducing hours until they decide to leave for themselves, then just keep the hire cycle going. If you were ever wound down to zero (or close to) hours while others worked more, you should understand they didn't like you for whatever reason and didn't want to bother through the process of officially firing you. Is this all nice and legal, probably not, and that's why there is law suits occasionally, but its rare and they get away with it most times.
Democracy – a casualty of the pandemic
I have a major issue with the headline. I havn't seen any democratic countries turn to dictatorships during the pandemic yet. The pollies are still doing what they were elected to do and will have to face re-election in the near future.
If the general concensus of the population is that they want vaccine passports and restrict those not vaccinated. That is democracy in action. As a business being able to choose entirely who it serves and who it does not (vaccinated or not) is a pure capitalist ideal, the individual business owner can choose entirely how they operate, that would include basic discrimination. Socialism would force the business to serve the masses, as that would be best for the community.
I think the correct term would be sacrificing basic rights as a casualty of the pandemic.