"It's not about your own personal risk here. You don't get to decide that you wish to take that risk and potentially end up using NHS resources, meaning others potentially miss out on treatments. It's not about YOU."
This is not correct.
We've always got 'to decide that you wish to take that risk and potentially end up using NHS resources'. We don't refuse treatment to people who drink too much and cause an accident, or destroy their health, or travel abroad without injections and come home with an exotic disease, or have unprotected sex and catch an STD, or people who play risky sports, or who eat too much and develop type 2 diabetes as a result, or obesity, etc, etc. And they all 'use up NHS resources', often at times when demand is even higher than it is now.
Most of us try not to 'bother the doctor' if we think we can manage not to, but we all pay for the NHS and expect it to be there for us when we need it, without altering our lifestyles dramatically to 'protect' it, even at busy times of year. And some of the demands now made upon us to 'protect the NHS' go way beyond just slightly altering our lifestyles.
Many people absolutely rely on face-to-face social contact in order to stay mentally and physically well. All sorts of facilities are set up just to provide this contact in order to do so, because its importance is well recognised. Many people have noticed a decline in the condition of loved ones in care homes deprived of contact with beloved family. Solitary confinement is a known and, in civilised societies banned, form of damaging punishment.
Just because those who are fortunate enough to have enough support or not to need it choose to sneer at and belittle the needs of those who do, it does not mean that they are reasonable. Nor is it reasonable for those who are very frightened of Covid to expect others to damage their mental health to attempt to make the scared feel better.
We all have needs. We are all entitled to try to meet them and ask those who offer to help us, but we are not entitled to demand others to do so at the expense of their needs.