First past the post doesn't mean we have the winner. It just means they reported first.

Those that take the vaccine should be given a passport back to a normal life while those that refuse should not until enough have been vaccinated to ensure heard immunity .

Govt seems to think vaccines should be voluntary
Health Secretary Matt Hancock has confirmed: “We are not proposing to make this compulsory – not least because I think the vast majority of people are going to want to have it.”
https://www.bbc.co.uk/news/world-asia-china-51176409

That won't happen - mainly because we live in a free democratic society and not a Socialist Dictatorship no matter how much it appeals to you.

Has any decision been made as to whether the use-it-or-lose-it rule will apply to slots in the UK and EU for the summer 2021 period ? If no decision yet, when are decisions expected ?

IATA Virtual Slot Conference is still going ahead next week I believe. Slot hand back isn't until the end of January so plenty of time yet.

Of course the obvious thing you and others didn't see was the name of the drug. You need to read more.

Right. A drug company who says we didn't seek Govt funding, next they will be saying that the drug will be available to everybody at cost with no profit taken.

Airline travel is pretty much dead in 2021, drug is not fully tested and likely would be 6 months before FDA have approved it and 12 months minimum before it was available widely, I was going to say "freely" available but it is a drug company.

Migrant worker issue has a life cycle of its own and many markets are now in mature phase.

When Govt start making it compulsory they will find that their replacements who ousted them may have a different viewpoint,

You can fly to some Eastern European country to do your covid test cheaper :) It's only 70 eur over here :)
I am sure Turkey with their big medical tourism industry could offer even better deal. Like fly to you holiday destination on TK via Istanbul, get yor covid test done during layover for free :)

It's in the nature of vaccination programmes that a minority of the population who decline to be vaccinated benefit from the fact that the majority are protected. The trick is to ensure that the minority doesn't become a majority.

Few would disagree with travel restrictions being tied to vaccination - but your original "refuse [the unvaccinated] a passport to a normal life" implied something rather more draconian, whether that was your intention or not.

The way to do that would be to make vaccination compulsory, via the back door, by denying access to unvaccinated people to pubs, restaurants, child care - and overseas travel, unless they can provide a certificate confirming their vaccination is current. The latter could be achieved not by barring the unvaccinated from having a passport, but denying them from returning to the UK, without 14 days government provided secure quarantine if they weren't vaccinated. I should add that the government quarantine facilities would be charged for at a commercial rate plus.

How would you deal with those who can not take a vaccine for genuine medical reasons

Is it a case of, to quote Mr Spock -
'logic dictates that the needs of the many outweighs the needs of the few'
just saying.

There are no plans for those in England aged under 50 and without health issues (and not health workers) to be vaccinated on the grounds that the risk of these people dying is very low
These people will of course be able to act as infectious carriers and account for a large section of those who fly, yet denying well over half the population access to a normal life for many months on the grounds that they are unvaccinated may be problematic. Herd immunity is not going to happen for a LONG time. We are going to have to live with this, and accept the idea of potential carriers being in the community... or have many more months of lockdown

https://www.bbc.co.uk/news/health-54902909

In the same way as there are people exempt from wearing a mask. And many of those with compromised immune systems would not want to go abroad since they would not be able to get insurance.
There are democracies which won't allow unvaccinated children to attend school.

A "genuine" medical certificate, provided by a bone fide health professions; not the ridiculous self certification that gets those who don't, as well as those who can't wear face coverings out of doing so. If we're to beat this thig, and for that matter measles, mumps and rubella we have to start getting tough and sanctioning those who won't take vaccinations for the greater good of society.

And, by the way, I wouldn't allow any religious exceptions, since religion is a belief, not a condition.

Showing my ignorance here but with President elect Biden not taking office until 20th January where does that leave US policy on border access in the meantime?
If nothing changes in the interim as I would imagine then even if the UK drops it's 14 day quarantine period, the border to North America will remain closed into next year notwithstanding any policy decisions that the incoming POTUS might choose to make.
I appreciate quarantine affects all countries and all visitors but the US is always seen as such an important long-haul market.

Commit - I think you've answered your own question. Trump is the person who controls Covid immigration policy between now and 20-Jan-2021 - the only way around this is some significant turf war around constitutional powers

Let's just keep pumping people full of drugs, Pharmacy companies will be so pleased.