Surely everyone who was going to die from corona will do eventually, unless we all stay locked up at home forever or unless a vaccination or cure is discovered.
No. Just no. It's not a question of medical care merely prolonging your life, but your basic - perhaps genetic - vulnerability remains and if it doesn't get you this time, it'll get you the next.
Let's allow that some people truly are more vulnerable, not just because of age or underlying disease but by virtue of their genetic makeup; research is beginning to support that.
So, such a person catches Covid-19, it gets bad enough that they go to hospital. Because we've instituted lockdown, the NHS is not overwhelmed and they're put on a ventilator and survive. In your scenario, OP, they go home but it's just a matter of time before they get it again & die.
But a) they'll have antibodies & therefore a good measure of immunity to catching it again, and b) even if that immunity wears off, they might go to hospital again and the same ventilator, and dedicated care, might save them again.
So, far from it being a unique disease that is unjustifiably displacing other sufferers, it's just another infectious disease, worse than flu, not as bad as ebola, that people can survive and have every right to expect hospital treatment to enable them to survive. Just like cancer.
When the pandemic subsides (not if, because even the most grossly incompetent management of the crisis would eventually lead to herd immunity, though with a huge death toll) coronavirus will simply take its place in the roll-call of infectious diseases that require isolation and treatment.