More than half of the populations of UK and USA have had at least one vaccine. The USA's status as an Amber list country is unclear and transatlantic travel needs to be urgently reinstated, by adding the USA to the green list.
You may be interested in these active petitions
Resuming international travel between the USA and UK is important not only for economic purposes (holiday, business etc) but to reunite families. The Government cannot claim that the vaccination programme has been a "success" if it doesn't allow those who have done their civic duty and got the vaccine to have their freedoms back.