> This is what OP claimed

No, this is what the OP claimed:

> It is the US + UK that are blocking all exports

As to this:

> there is only one argument that can be made against that

Again - no, there are other arguments against that, the best being that black and white thinking is a terrible way to analyse reality, the second best being that a list was provided above of medicines blocked for export by the UK and no SARS-COV-2 vaccines are on it.

If the logic evades you further it may help to ask a question: which vaccines are you exporting and is it because you are blocking exports?

That should make it clear that there are more possible reasons for exports not to happen than their being intentionally blocked.

Human beings are able to move past the narrow meaning of specific words and look at the bigger picture, which is that vaccines are neither leaving the UK, nor reaching other countries.

This is the measure that will be used to judge the UK. Whether the vaccine is on some list may be an aggravating factor, but it's otherwise immaterial.

> Human beings are able to move past the narrow meaning of specific words

How convenient. Considering you claimed one thing that was false and are now claiming another thing that is also false but would help make your original claim true because you say so, I think I'll stick with the "narrow" form of interpretation that humans have managed so well with up till now.

> This is the measure that will be used to judge the UK.

Only by those with such strong prejudices that it requires a reimagining of the English language and of logic to help protect them from having to re-examine their notions.

> Whether the vaccine is on some list may be an aggravating factor, but it's otherwise immaterial.

Unless you have evidence of the vaccine being blocked then it is material indeed, however inconvenient that is for you. Feel free to supply actual evidence of the vaccine being blocked that goes beyond "because I say so" and doesn't require pushing words beyond their actual meaning.

Vaccines are neither leaving the UK, nor reaching other countries.

I’m also not going to or leaving the UK and there’s no blocking going on.

Have you noticed the lack of logical necessity in your argument yet?

Yes, and if someone were to wait for you and need you outside the UK you would not be there for them. Just like the vaccine.

Because of prior arrangements, not because of blocking.

I'm glad that you now acknowledge that "there is only one argument" is not so, that is definitely progress.

I've been trying to say for quite a while now that it doesn't matter why something/someone is not present where they should be, if the consequence is people will die. How hard can it be to understand that? :)

Those people are still dead.