Imagine a car that when running low on gas, randomly ejects passengers to reduce load. Would you choose to use such a car?
People even use the same analogies. https://chase-seibert.github.io/blog/2009/04/23/the-case-of-...
That’s why things like the OOM killer exist in Linux - there are times where the system as a whole is better off at the cost of a few random users odd processes.