The other danger of the silly political games that have delayed the rollout of the vaccines in so many countries is that the more COVID there is in the community the greater the risks of new variants developing that will challenge the efficacy of the vaccine.
While the UK will always be vulnerable to imported variants, by getting the vaccination programme going so quickly and so fast, we are reducing the extent of COVID in the society and reducing the possibility of another dangerous variant developing that may not be so easy to treat.
The sooner other countries catch up with us in vaccinating their population, the sooner the risk of rogue variants falls.