Firstly, there is a shortage of vaccines worldwide. No one is trying to "kill off the oldies"; they are being the first, rightly, to get what there is available. There are no magic wands to make more than is humanly possible. The achievement of getting to this stage is amazing and we should remember that.
Secondly, why don't people do a little research?
Where's our advanced medical treatment, since scientists knew that another pandemic would strike ? Why weren't we more prepared?
A report into Operation Sygnus (2016) was released in October 2020. It said:
“the UK’s preparedness and response, in terms of its plans, policies and capability, is currently not sufficient to cope with the extreme demands of a severe pandemic that will have a nationwide impact across all sectors”.
The medical treatment has advanced faster than anyone could have expected. The scientists warned and explained. The government knew but continued to cut back in the very areas that we would need under the circumstances we have.
Although this is surely a day for thinking of all the poor families who have lost their dear ones, if you are going to tear into people please tear into those who deserve it - not those who have gone above and beyond and produced amazing results.