There are personal views. They are not the same as political views

THE Donald has two years more to go; and if he wins re-election he  will be C-in-C of the US for four more years. This makes a total of 6 more years for him.

The Queen of England is age 92.

In six years she will be 98 and in all probability will be alive and well. Her mother had the long life gene and lived to 100+.

Who knows what the future will be. Certainly is it absolutely guaranteed that the British Government might not find an urgent need for the President of the US to come to England to finesse some critical political matter.

If he has to come, will there be a repeat of this:

https://www.independent.co.uk/news/uk/home-news/prince-william-charles-snub-donald-trump-uk-visit-queen-royal-family-a8448991.html

If it is King Charles III, he cannot push a personal view point to not greet THE Donald then.

And if it is his son who is King, he too cannot not greet the US President then.

So what both did was very inappropriate and extremely selfish for their point of view how things SHOULD BE - on this pass.