Excellent analysis, Tim.
By every measure COVID 19, in its present form, is nasty.
The virus is highly likely to continue to mutate over the next 3 to 5 years into a form that is more contagious but less dangerous, all Corona Viruses do this as it isn't in the interest of a parasite to kill its host.
But not all viruses are so clever, Ebola is a case in point.
In the meantime vaccination is the only logical way forward and whilst I would not support making it mandatory my proposal is that whilst vaccination would not be compulsory anyone who declines should have their passport suspended until they change their mind.
Add to that allowing businesses to require proof of vaccination before entry and we would soon see all those who spend far too much time on the internet reading conspiracy theories change their mind if they can't travel or go and have fun.
I'd also require proof of vaccination before allowing foreign visitors in.