There is no economy anywhere in the world that can support an infinite demand for healthcare. We keep inventing new healthcare too, so it only gets worse. There will be limits to healthcare, though we can lie to ourselves about that.
If we don't place a price on life, then 100% of our money goes to healthcare and then we still end up dead in the end.
With socialised healthcare, the politically viable solution is to promise more than can be delivered. This causes waiting lists. Waiting lists for "free" (tax funded) care will grow as long as demand exceeds supply. The supply is limited by resources. The demand is only limited because people die while waiting for treatment.
There is a huge opportunity for corruption and bias here. Instead of a simple waiting list, we can move people ahead if they are politically favored.
It's all simpler and less corrupt if we let market prices sort out how we wish to prioritize the care of one person, the care of another person, and all the other possible economic activity.