Vaccinate the smallest number of people possible in order to minimise the evolutionary pressure for vaccine escape. Vaccinate the most vulnerable.
Invest heavily in therapeutics / complementary therapies to minimise the impact of others who my become infected. Put serious public health initiatives in action to lower the risk to the rest of the population. That would involve hard measures in particular to address obesity and the comorbidities that brings.
It's not a perfect strategy, but it doesn't rely on a proposal that requires everybody to be vaccinated what looks like multiple times a year forever, with the sole tangible benefit being a reduction in mortality. The impact on transmission currently doesn't appear to be significant if as Sajid Javid said today we're looking at 100,000 cases per day by end of summer. Note I'm not anti-vaccination. I am however wary of solutions that appear to offer easy answers where they may not exist.
It matters not now, the die is cast. However, it bears repeating the "following the science" is a great get-out clause for the political classes as they can claim it's what they were told at the time. Mass vaccinations using the particular technologies involved in this endeavour is new territory. For the clinically vulnerable vaccination is a no-brainer. For an 8 year old child? Well that's different isn't it? As we have found out, vaccinations are not without impacts / risks. There are no observable long term studies that allow "science" to determine whether or not we have embarked on the "right" path. I hope that in fact that history looks at this a a great success.