Those are not measures they are some of the awful, additional side effects we see due to COVID-19. I'm sure we all try to reduce them as best we can.
Here, the NHS repeatedly asks people with problems that would normally require a visit to A&E (ER) to do so. They really do have capacity to deal with cancer, heart attacks, stroke, etc in a safe way. There are entire wards and buildings that are segregated and "clean" of COVID-19 for this purpose.
Elective is a funny old word and is a bit more nuanced than you imply. Some elective surgeries here are still going ahead.
The list you provide is a starter for 10 of things that are and will go wrong for a long, long time but it is what seems to happen when a massive world wide pandemic strikes. This is a world war where everyone is near enough on the same side.