//What does after happen when the NHS is overstretched like now is some less urgent treatments get postponed until more beds and doctors are available and its safer to put the cancer treatment patient in hospital when staff and buildings contain a deadly virus//
What, and hope they don't die in the meantime, you mean? Why don't you properly address this question:
"Why are eighty or ninety year olds with covid receiving treatment yet there are those a lot younger with cancer having treatment postponed?"
The 80/90 year old with Covid will almost certainly die if left untreated. A twenty-five year old suffering from testicular cancer (as one of my nephews did five or six years ago) will almost certainly die if left untreated. He was told without treatment he would have been dead in eight to twelve weeks. In the current circumstances, living where he lives with one of the highest infection rates in the country, his treatment would have been postponed and he would almost certainly have died. Yes, his death would have taken a few weeks longer but the prognosis would have been the same. So, accepting that some prioritisation has to be made why does the Covid patient get priority over him? Your assertion that "Anyone who is 1-2 weeks ago from a seriously horrible painful illness and likely death will be admitted.." is incorrect - certainly where he lives - because there is only one illness which gives a patient that privilege and it's not cancer.