Ooops, posted too soon. To follow up on your supposition that it would not cost very much to protect Archie, which is actually wrong as the provision of six months of protection for the family when they were living in Canada cost this country a quite inordinate amount of money due to the fact that the whole security team had to be accommodated abroad, with flights, etc. It’s totally unreasonable to expect this country to pay for a family and their children, who have abdicated from royal duties, and chosen to live abroad.
Furthermore, why should Archie be singled out to be protected since the Queen has twelve great grandchildren and only Williams’s children receive any protection at all, due to their father being in the direct line to ascend the throne. The other nine great grandchildren of the Queen receive no protection at all. Why is Archie different to these other great grandchildren of the Queen?
Incidentally, Archie’s parents have chosen to live in a country with a huge crime rate and murder rate, far, far higher than the UK. America is certainly not as safe as the the UK for anyone, let alone a great grandchild of the Queen.